2012 Chemistry Kedah With Answer

7/27/2019 2012 Chemistry Kedah With Answer

1/83

SULIT

454lll

PROGRAII

PENINGKATAN

PRESTASI

AKADEMIK

SPM

TAHUN 2412

CHEMISTRY

Kertas

1

Satu

jam

dan

lima

belas minit

1.

2.

3.

JANGAN BUKA

KERTAS

SOATAN

INI

SEHINGGA DIBERITAHU

Kertas

soalan

ini adalah

dalam dwibahasa

Soalan

dalam

bahasa lnggeris

mendahului

soalan

yang

sepadan dalam bahasa

Melayu

Calon

dikehendakimembaca

maklumat

dihalaman

belakang kertas

soalan

ini.

Kertas

soalan

ini

mengandvngi

24

halaman

bercetak

http://cikguadura.wordpress.com/


2/83

SULIT

INFOR]VIATION

T'OR

CANDIDATES

MAKLUMAT

T'NTUK

CALON

l.

This

question

paper

consists

of

50 questions,

Kertas soalan

ini

mengandungi 50 soalm.

2.

Answerall

questions.

Jawab semuo soalan.

3.

Each

question

is followed by four

alternative

answers,

AP.C

and

D.

For each

question,

choose

one

answer only.

Blacken

your

answer

on

the

objective

answer

sheet

provided.

TiaVtiap soalan diih.ti

aleh

emqtat

pililnniawapan.

iaitu

A,8,C dan

D.

Bagi

set@

s(xrl(m,

pilih

saUjan'apan

sahaia.

Hitamkanin+,apan

mda

pada kertas

jawqan

objektf

ymg

disediakan.

4.

If

you

wish to

change

your

answer,

eras

the

blackened

mark

that

you

have made.

Then

blacken

the new answer.

Setiranyo

onda

lrendak

menulmriawapan,

padamkan

tanda

yang

telah dibuat.

Ikmtiian

httankan

iov'

apm

yang

baru.

6.

The diagrams

in ths

questions

provided

are

not drawn

to

scale

unless

stated.

Rajah

yang

mengiringi soalan

tidak

dilukis

mengihtt

skola

kecuali

dinyaalcan

7.

You

may

us a

non-programmable

scientific

calculator.

Atdo

dihenarkan

nengunakan

kalhiator

saintiJikyang

tidak

boleh diprogram.

4S4ut

[Lihat

scbclah

SIILIT

45dut


3/83

SULIT

454u1

A2

B3

c4

D5

Diagram

I shows

a

stnrcfuie

ofammonia

molecule, NH3.

Ralah

I

nrenunjukkan

satu

stntVur

molefutl

ammonia"NHz

Diagram I

How

many

atoms of hydrogen

alr there

in

one

molecule

ofammonia,

NHr?

Berapakah

atom hidrogen

yog

terdapat dalam

suu

molekal ammonia,

NHI?

Which

of

the following

are

anions?

Manakah

antara beriha

adalah

anion?

A

Li*,H*

Al3*,

cr

G'

,

crzor'-

MnO+-, NHa*

Diagram

2

shows

the

elernents in

the Periodic

Table.

Rajah

2 menunjuA:ftan

unsar-unsur

dalam

Jadual

Berksla

Diagram

2

Which

element

is

a

halogen?

Unsur manakah adalah suatu

halogen?

c

D

AP

Ba

CR

DS

H

N

I

H


4/83

STJLIT

4

What type

of

chemical bond exist

in water,

HzO

?

Apakah

jenis

ilmtan

kimia

yang

wajud dalam air

,

H2a

?

A

Covalent

bond

Ikntan

kovalen

B

lonic

bond

Ikatan

ionik

C

Metallic

bond

Ifutan

logam

D

Single bond

Ikatan

tunggal

Diagram

3 shows

the

apparatus

set-up for an

experiment.

Rajah3

rnemnjukkan

susururn

radas

untuk

suatu ekspertmen

4541n

Anode

And

Cathode

Kotod

Electrolyte

Elektrolit

Diagram

3

Which

ofthe

following

substances

could

be

used

as an

electrolyte?

Antara bahon

yotg

berilst,

yang

manakah boleh

digunakan sebagai

elektrcli{

A

Solid

naphthalene

Pepejal nofialena

B

Hydrochloric

acid

Asid

hidroHorik

C

Molten

glucose

I*buran

glukosa

D

Pure

ethanol

Etmol

nlen

6

Which

of

the

following

is

true

about

an

acid?

Auara

pernyataan

berilal

yang

manaf,ah

bewr

tentang suatu

asid ?

A

An

acid is not conosive

Asid

tidak

mengkakis

B

A

strong

acid

has

a

low

pH

value

Asid hnt memputyai

nilai

pHyang

rendah

C

A

weak acid

has a

high

degree

of

ionisation

Asid

lemah

mempnyai

kadar

pengionanyemg

tinggi

D

An

acid

is a

chEmical compound that

is

soluble in

water

to

produce

OH-

ion

Asid ialah

sebdian

kimia

ywry

lantt

dalom

air menghmilkan

ion Abf

rebelah

4sut


5/83

STJLIT

454u1

scbchh

il

III

IV

A

B

C

D

Which

of

the

following

substances is a

soluble

salt?

Aruara balnn

berilwt

,

yang

monakah

goram

terlarutkan

?

Sodium

chloride, NaCl

Natrium

Horida,NaCl

Barium

sulphate,

BaSO+

Barium

sulat,

BaSOI

Potassium

nitrate,

KNO3

Kalium nitru, KNOr

tf,ad

0I)

carbonate,

PbCO3

P I u

mb

u

m(Il)

ka

rb

o nat, PbCOr

I and

ll

I

and

tII

II

and III

II

and

IV

Diagram

4 shows

a

type

of

material

used

to make buildings.

Rajah4 merunjukkan sejenis

bahanyang untuk

membina

bangtnan

Cement

Simen

Steelwires

Wayar

keluli

Diagram

4

What

arr

the characteristics

of

the material?

Apakah

ciri


6/83

SULIT

454u1

9

Which

ofthe following

explains

the

meaning

of

effective collision?

Antqra

berihtt,

yang

manakah

mererangkan

maksud

perlanggaran

berkesan?

A

The coltision where its

energy is

less than

the

activation

energJ

P

erlanggaran yang

mempwryai tenaga kurang

daripada

tenaga

pengalctifan

B

The collision

that

has a

low

energy

Perlongaranyang

mempunyat

terurya

yang

rendah

C

The

collision

which

takes

place

before

a

reaction

Perlangaranyang

berlaka

sebelum

tindak balas

D

The

collision

that

causes

a

rcaction

Perlanggaran

yang

menghasilkan tindak balas

l0

Which

of

the

homologous

series

is a saturated

hydrocarbon?

Antara

siri

homolog

berikat,

yang

manakah

hidrokarbon tepu?

A

Alcohol

Alkohol

B

Alkenes

Alkena

C

Alkanes

Alkana

D

Carboxylic acid

Asid

ksrbokcilik

11

The

following

information

is about the effect

of

magnesium towards the rusting

of

iron.

MaHumat berikut

adalah

tentang

kesan

magnesiarn

terhadap

pengaralan

besi.

Magnesium that is in

contact with

iron

will

protect

iron from rusting

Magnesium

yang

bersennhan dengan

besi

aknn melindungi

besi

daripada

berkarol

Which

of

the

following

explains the

statement?

Antara

berihut,

yang

monakah

merupakan

perrersngan

bagi

pernyataan

itu?

A

Magnesium

is

softer than iron

Magnesium

lebih

lembut

doripada

besi

B

Magnesium is a

good

heat

conducfor

Magnesium

adalah kandufuor

luboyang

baik

C

Magnesium

has

a

lower melting

point

Magnesium mempunyai

nkat

lebur

yang

lebih rendoh

D

Magnesium

is

more tendency

to

release

electrons

Magnesium lehih cenderzng

untuk membebaskon

elelaron

[Lihat

sebelah

4vt/t


7/83

SULIT

12

Which statement

is

correct

about exothermic

reaction?

P e

rny

at

asn

m anakah

y

utg

be t

aI me nge

nai

I i

ndak

b a Iac e

ks o

t

e

rm i

k

?

A

The

reaction absorbs

heat

from

the surrounding

Tindah balas

menyerap haba dari

persekitaran

B

The surrounding temperature

decreases

Suhu

pe

rse

kitaran

rnenarun

C

In

this reaction,

heat

energy

is

converted

to chemical

energy

Di

dalam

ttndak balas

ini,

terwga

laba

diubah

kepada

tenaga kimia.

D

llhe

products

contain

less

enerry

than

the

reactants

Hasil

tindok balas mengandungi

htrang

tewrya

daripada

bahan

tindak balas

13

Which of

the

following

medicines

is an

antibiotic?

Anara

ubat

berikul, yang

manakah suatu

antibiotiV?

A

Insulin

Insulin

B

Aspirin

Aspirin

C

Streptomycin

Streptomisin

D

Paracetamol

Parasetamol

14

Diagram

5

shows

the

change

of

state

of

matter.

Rajah 5 menunjukkan

sata

penrbalwn

keadaanjirim.

Ice cube

-

Water

.-_-..}

Kiub

ais

Air

Diagram

5

What is

the

name

of this

process?

Apakah ruma

proses

yang

terlibafl

A

Sublimation

Pemejalwapan

B

Boiling

Pendidilnn

C

Freezing

Pembehnn

D

Melting

Peleburan

454lll

[Lihrt

sebclah

4541/t


8/83

strLIT

8

454u1

15

firc

molecular formula

of

hexene

is

CeHrz.

Which

of

the

following

has

the

same

empirical

formula

as

hexene?

Formula molehtl

bagi hekseno

adalah

Cellrz.

Ma*ah

antara

berifut

mempunyaiformula

empirikyang

sama

dengan

heksena?

A

CsHro

B

CsHrz

C

CeHo

D

C6FI1a

16

Potassium

is

situated in

the

same

group

as sodium

in the

Periodic

Table.

Which

of

the

following

statements

is

true

abut

the

element

potassium?

Kalium

beroda

di

dalam

htmpulot

yang

sama

dengan ruilrium

di dalam

Jahsl

Berkala.

Anlffo

pernyalaon

berihtt,

yangmaru,

benar

ten

angunsur

kalium?

A

Reacts

with

waler

to

produce

acidic solution

Bertindak

balas

dengan

air

menglnsilkan

lanttan

berasid.

B

React with

chlorine

gas

to

produce

a

black

solid.

Bertirdok

balas

dengan

gas

Horin

menglnsilkan

Fpej

al

hitam.

C

Potassium

has

several

oxidation

numbers.

Kal

ium

me

mpunyai

be

berapa

wmbor

pengo

ksidaan

D

Potassium

has

low melting point

and

boiling

point.

Kalium

mempunyai takat

lebur

don takat

didihyang

rendah.

17 Which

of

the

following

are

the

properties

of

sodium

oxide?

Antara berihtt

,

yarg

manakah

sifu-sifu

Mtium

oksida?

I

Low

melting

point

Mempwryai

takat

lebur

rendah

ll

Insoluble

in

water

Tidak

urlarutkmt

dalatn

air

tII

lnsoluble

in

organic

solvent

Tidak

terlarutlwn

dalanr

pelarut

organik

ry Decomposes

to its

constituent element

by electrolysis

in

molten

stale

Terurai

kepada

unsur

juzubtya

melalui

elektrolisis

dalan

bentuk

leburan

A

landll

B

IandIV

C

ll

and tII

D

III

and

IV

[Lihat

sebelah

454u1


9/83

SULIT

l8

Diagram 6

shows

the

apparatus set-up

for an

electrolyic

cell.

Rajah 6 menunjukkan

susundn

radas bagi

sebuah

sel elektrolisis.

Carbon electrode

Elektrod karbon

9

454llt

Carbon

electrode

Elehrod

karbon

Copper(ll)

sulphate solution

Laru tan kup

ru

m(ll)

s

u

Ifu

t

Diagram

6

Which

of the following

ions

are

atkacted

to anods and cathode?

Yang

manakah antara ion-ion

berilut

tertarilc

ke

anod

dan karcd

?

Anode

Anod

Cathode

Kolod

A

SOa'-

Cu'

B

Cu2*

OH

c

SO,'-. 0H-

Cu'-,

Fl-

D

lu'-.

H

SO4'-,

OH-

19

Which

ofthe following

is not

a chemical

properfy

of acids?

Antarayang berilcut,

yang

manakah

bu*an

sifat

kimia

bagi

asid?

A

Reacts with

magnesium

carbonate

to

produce

salt,

water

and

carbon dioxide

Bertindak balas

dengan

magrresium

karbonat untuk

menghasilkan

garern,

air

dan

karbon dioksida

B

Reacts

with

copper metal to

produce

salt

and

hydrogen

gas

Bertindak

balas dengan logam

kupram

untuk

menghasillean

garam dan

hidrogen

C

Reacts

with

zinc oxide to

ploduce

salt and

water

Bertindalc

balas

&ngan zink

oksido

antuh menghasilkan

garam

dan

air

D

Reacts

with

alkali

to

produce

salt

and

water

Bertindak balas

dengan alkali

untuk

menghasilkan

garam

dan air

fl,ihar

sebelah

454Ut


10/83

SULIT

20

The

following

information

shows

the

properties of salt X.

MaHumat

berikut menu4iukkan

s@-sifct

goramX.

Releases

brown

gas

and a

gas

which

tights up

glowing

splinter

when

heated

strongly

Membebasksn

gos

perang

dot

gas

ytmg menyalakan

kayu

uji

berbara

apabila

dipanaskan

dengan

lant

Residue

after heating

is

brown

when it

is

hot

and

yellow

when

it

is cold

Baki

yang

berwarna

perang

semasa

panos

dan

hming

semasa

seiuk

What

is salt

X?

Apakah

garomX?

A

Zinc

nitrate

Zink nitrat

B

Zinc

carbonate

Zink karbonat

C

Lead(II)

nitrate

Plumbum(Il)

nitrat

D

Lead

(II)carbonate

Plumbum(ll)

karbonat

Diagram

7

shows

the arrangement$

of

atoms

in three

substances.

RajahT

menuniukkan

susunun

otorn-alom

dalam

tigaienis

bahan-

10

454U1

[Lihat

sebeleh

2t

P

Arrange

the

substances

from

Sus

un

b afran-

b

ahan

te rs e

but

Diagram

7

the most ductile

to the

least

ductile-

dari

paling

mulur

ke

karang

mulw.

A

&P,Q

B

P,R,Q

c

Q,P,R

D

Q,R,P

4541n


11/83

SULIT

22

The

following

equation

shows

the reaction

between

calcium

carbonate,

CaCO:

and hydrochloric

acid" HCl.

Persomaan

berikul

menunjukkon

tindak

balas

antarq serbuk

kalsium karbonal,

CaCOr dan

a.sid hidroHorik,

HCl.

CaCOn'y

+

ZHCl1"qy

+

CaClqay

+COz@

+

HzQu

Which of

the

following

is the suitable method to determine the

rate of

rcaction?

Antara

yang

berikut,

yang

nanakah

merupakan

lraedah

yang sesuai

urduk

meneuuksn kadar

tindak bslas?

A

Change

in

the

temperature

of

the

solution

with

time

Perubahan

suhu

larutan dengan masa

B

Change

in

the volume

ofcarbon

dioxide

gas

with

time

Perubahan

isipadu gas

lmrbon dioksida

dengan masa

C

Change

in the

mass

of

water

with

time

Perubahon

jisim

air

dengan masa

D

Change

in

the

concrntration

ofhydrochloric

acid

with

time

Perubahan

kepekaton

asid hidroHorik

dengan

rnasa

23

Alkane can bs

produced

from

the

hydrogenation

of

alkene.

Name the catalyst

used

in

this reaction.

Alkana

dapat dihasitkan daripado

tindak

balas

penghidrogenan

alkerw

Narnakan

mangfrinyang digunakan

di

dalam

tindak

balan

ini.

A

Nickel

Niksl

B

Phosphoric acid

Asidfosforik

C

Sulphuric

acid

Asid

sulfurik

D

Aluminium

oxide

Aluminium oksido

il 4S4Ul

[Lihat

sebelah

454u1


12/83

SULIT

45dut

24

Which

of

the

following

are

oxidisingagents?

Antora berilat

yang

nstahah

agen

pengoksidaon?

I

Magnesium

Magnesium

il Chlorine water

Air

Horin

til

Potassium

iodide

solution

Larutan kalium

iodida

ry

Acidified

potassium

manganat{Vll)

solution

Larutan kalium

msngg@at

(WI)

berasid

A

I and II

only

B

lI and

IV

only

C

I,II

and

III

only

D

I,

II

and IV

only

25

The

following

equation shows the reaction between silver nitrate solution

,

AgNO3

and

sodium chloride

solution,

NaCl.

Persamaan

berihat

mew4iuF,kan

tindak bala.t antara

lat*an

argentum

nitrd,

AgNO3 dan

larutan

rwriun

Horida,NaCl

AB],rOr

(aq)

+

NaCl

(aq)

-.+

AgCl

(s)

+

NaNQ

(aq)

AH:-

80.64

kJ mol-3

Which

ofthe following is

true ebout thc

heat

change

and

type

ofreaction

for&e

chemical

equation?

Antara

berilad

yang

monakoh

beno

nengenai

perubahan

lwba

danjenis

tindok

balas

bagi Wrsamcum

kimia

ini

?

Heat

change

Perubahsthaba

Type

of

reaction

Jenis

tinda*

balas

Heat is released

Haba

dibebaslwn

Endothermic

Heat

is

released

Haba dibebaskmr

Exothermic

Heat

is

absorbed

Haba

disero

Exothermic

Heat

is

absorH

Haba diseran

Endothermic

26

Which

quation

rcpresents

a

rcaction

of

saponification?

Persam.aan

manakah

tnewakili

tindak balas saponifrkasi

?

A

Acid

+

Alkali

-+

salt

+

wster

Asid+Alkali+gwan+aii

B

Alcohol

+

Carbo:rylic

acid

---r

ester

+

water

Alkolwl

+

Asid

kobsilih+

ester

*

air

C

Fats

+

Alkali

-'

Fatty

acid

salt

+

Glycerol

Lemak

+

Alkoli

4

garcm,

asid lemak

+

gliserol

D

Yeast

+

Glucose

-'-r

alcohol

+

carbon dioxide

Yis

+

Glukosa

+

alkolpl

+

kabon

dioksida

451lll

t2

A

c

D


13/83

struT

454llt

27

Tablc

I shows

the

proton

number and the

number of

electrons

in

four

different

particles.

The letter

used

is

not the

asatral

symbol

of

the

elements.

Jadual

I

merunjuk*antwmbor

prolon

dan bilangan

elekron

dolam

empat

zarah.

Hunrf

yang

digurukan

bakan simbol

yang

sebens.

Element

Unsur

Proton

number

Nombor oroton

Number

of electron

Bilansan

elebron

P t7

t7

a

t7

l8

R

t2

t0

s

8

I

Table

I

Which

is

an

anion?

Yang manakah

suatu

qion?

AP

Ba

CR

DS

28

Which substance

contains the

same

number of

atoms

as

in

12

g

ofcarbon?

[Relative

atomic

mlss:

He

=

4,

C

=

l2,O

=

l6n lfr/rg= 24,

Al

:

27,

I mole

ofany

gas

occupies

24

dm3

at

room

conditionJ

Balnn

moukah

mengandangi

biloryan

atam

yang

sama

dengan

12

g

karbon?

lJisim

atomrelatif:

He

=

4,

C:

l2,A

-

16, Mg

*24,

Al=27|

A

24

dm3

of

helium

gas

24

dmi

gas

lretium

B

12

g

of

magnesium

12

gmagnesium

C

16gofoxygen

16

goksigen

D

54

g

ofaluminium

54

galuminiurn

l3


14/83

SULIT

4541n

Zg

Proton

number

of

element

Zis}}.Element

T

has

the same

chemical

property

as

element

Z.

Which

of

the

following

is

the

electron

arrangement

for

atom

fi

Nombor

proton

unsur

Z

ialah

20. Unsur

T

mempunyai

sifat

kimia

yang

sama

dengan

i^u,

Z. Manakah

ontdro

beribtt

adalah

susunan

elektron

bagi

atomT

?

A2

B

2.8

c

2.8.2

D

2.8.8

l4

30

Diagram

I

show

the

electron

arrengement

of

elements

X

and Y.

Rajah

8

di

bawah

memmiukkan

Ewutl(m

elektron

bagi

unsur

x

dany.

Diagram

8

Which

of

the

fiollowing

is true about the

formula

and

type

of

bond formed

by

elements

X and

Y?

Antara

berilrut

yeng

msnkah

benar

mengenai

formula

danienis

ikatm

yang

terbenUk

&ltara

unsurXdanY

?

fl,ihat

sebelah

Formulae

Formula

Type

ofbond

Jenis

ikatan

A

XY,

lonic

B

XzY

Ionic

c

XY

Covalent

D

XYz

Covalent


15/83

SULIT 454ut

3l

Diagram

9

shows

the

apparatus

set-up

used

to

elechoplate

iron spoon

with

silver.

Rajah 9

menunjukkan susunan radas untuk

menyadur sudu

besi

dengan orgentum.

t5

32

Iron

spoon

Sudu besi

What

is

observed

at

the anode

and

cathode

after

30

minutes?

Apakah

pemerlwtian

di

anod dan

di tatad

selepas 30

minit?

Alkali

Y of

concentration

I

mol

dm-3 has

a

pH

of 8.

Which statement

is

true

abut

alkali

Y?

Atkati

Y dengan kepekatan

I

mol

dm'3

m empunyai

pH

8.

Pernyataan manahah

yang

benar tentong

alkali

Y2

I

lnsoluble

in water

Tidsklsut dalamair

il Reacs with a

weak acid

Bertindak

balas dengan asid lemah

ru

The

degree of

ionisation

in water

is

higlr

Darjah

pengionan

dalam

air

adalah

tinggi

ry

Has

a low

concentralion

of hydroxide

ions

Mempurzyai

kepfutan

ion

hi&oksidayang

rendoh

I

and

II

II and

III

I

and tV

II

and

IV

Silver

ptrate

Plat argentum

Silver

nitrate

solution

Ltutqn

argentum nitral

pihaf

scbelah

A

B

c

D

Diagram

9

Anode

Anod

Cathode

Katod

A

Silver

plate

becomes

thinner

Plat

arsentum semakin niois

Silvery

deposit

fonned

Mendakan berwarna

perak

terbewuk

B

Silvery deposit formed

Mendakon

berw

arna

perak

terbentuk

Gas

bubbles

released

Gelembung

gas

terbebas

C

Silver

plate

becomes

thinner

Plat

arsentum semakin

nipis

Cas bubbles

released

Gelembuns

sas

terbebas

D

Gas

bubbles

released

Gelembuns sas

terbebas

Gas

bubbles

released

Gelembuns.

src

terbebos

434ut


16/83

sul,rT

16

454tll

33

L)iagranr

l0

shows

some

reastion of

zinc compounds.

Which

changes

is made

by

adding

an

acid?

Rajah

lA menwjukkan

sebahogian

tirdak

balas

ymg

melibatkan

sebatian

zink

Antara

perubahan

lersebut

yang manakah

berlafu

dengat

penanbahan

asid

2

'

Zinc

carbonate

Zink karbonat

Zinc oxide

Zink oksida

A

Urea

Urea

Zinc sulphate

Zink

sulfat

)--.

Diagram

10

34

The

fcllowing

equation

is

a

reaction

to

prepare

a

synthethic

fertilissr,

Z.

Persamasn beriktt

adatah

tindakbslas

untuk

menyediafum

baja

sintelih

Z.

Ammonia

+Y

+

Z

Which

ofthe

following

is

Y?

Manakah

antara berikut

adalahY?

B

Nitric

acid

Asid

nitric

C

Ammonium

nitrate

Ammonium

nitat

D

Ammonium

hydroxide

Ammonium hidroksida

[Lihat

sebelah

ST'LIT

Zinc

Zink

454Ur


17/83

SULIT

35

In

an

experiment,25

cm3

of

0.2

mol dm-3

hydrogen

peroxide

solution

decomposes

to

produce

oxygen

gas.

Graph

of

volume

of

oxygen

gas

against

time

is sketched

and

curve R

is

obtained

as

shown

in Diagram

I I

Dalam

satu eksperimen, 25 cm3

0.2

mol

dm'3

larutan hidrogm

peroluida

terurai

menghasilkan

gos

olcsigen.

Graf isipadu

gas

oksigen melmsan

masa

dilakarkan

dan

lenglangR

terhasil

seperti

ditunjukkan dalarn Rajah

ll

Volume

of

oxygen

gaV

cm3

kipadu

gas

oksigen / cm3

Time/ s

Masal s

Diagram

I

I

Which

ofthe following

solution will

produce

curve

S?

Yang

manakah di antara

larutan

herika

okan menghasilkan

lengkung S?

A

20

cm3

0.1

mol

dm-3

20

cm3

0.1 mol

dm-3

B

30

cm3

0.2

mol drn-3

30

cm3

0.2

mol dm'3

c

20 cm3

0.3

mol

dm-3

20 cm3

0.3 mol

dm-3

D

l0

cm3

0.3 mol dmj

lo

cm3

0.3 mol

dm-3

hydrogen

peroxide

hidragen

peroksida

hydrogen

peroxide

hidrogen

peroksida

hydrogen

peroxide

hidrogen

peroksida

hydrogen

peroxide

hidrogen

peroksida

454tit

[Lihat

sebelah

SULIT

t7

454ut


18/83

SULIT

4541/t

36

Ester is

a

carbon

compound

that can

be

derived from

the

reaction

between

alcohol

and

carboxylic

acid. Diagram

12 shows

the

structure of

an

ester.

Ester

ialah

satu

sebatior

karbon

yang

diterbitkan

dtrii;da

tindak balas

antara

alkphol

dan

asid karholsilik.

Rajah

12 menunjukkan struktur suatu

ester.

o

il

CHr-CHz-C-O-CHg

Diagnm

12

Which

of

the

alcohol

and

carboxylic acid

used

to

form

the ester?

Yang

manakah allcohal

dan

asid

karboksilik

yang

digunolmn bagi

membentuk

ester inr2

Alcohol

Alcohol

Carboxylic

Acid

Asid

korbosilik

A

Methanol

Metanol

Ethanoic

Acid

Asid etanoik

B

Ethanol

Etanal

Ethanoic

acid

Asid

Etonoik

c

Ethanol

Etarai

Propanoic

acid

Asid

Propanoik

D

Methanol

Metanal

Propanoic acid

Asid Propanoik

37

Diagram

13

shows the

set

up of

the apparatus

of

a

simple

chemical

cell.

Rajoh 13

menunjukkan susurwn

radas bogi

sotu

sel

kimia

ringkas.

t8

Zinc

plate

PIat

zink

Silver

plare

Plat

argentum

Silver

nitrate

solution

Lorutan

argentum nitral

Diagram

13

Which half

equations

represent

rcaction @curs

at

silver

plate?

Antara

berikut,

setengah

per.iamctan

manakah

mewakili

tindak

balas

yong

berlaku di

kepingan argentum?

A

Zn

--)

Znzn

+

2e

BAg

--+

Ag*

+e

C

Ag*+

e

-'

Ag

D

2H*

+

2e

;

Hz

[Lihat

sebelah

454ut


19/83

SULIT

33

Hot

packs

contain

chemicals that

react

to

produce

heat.

Which

substance

is

used

in

hot

packs?

Pek

parws

mengandungi

bahan kimia

yang

bertindah

balas

untuk

membebaskan

haba.

Bahon manakahycng

digunakan

dalam

pek

panas?

A

Sodium

carbonate

Natium karbonat

B

Ammonium nitrate

Ammonium

nitrat

Magnesium sulphate

Magnesiumsulfut

Calsium carbonate

Kalsium ksrbonat

39

Which

of

the

following

is

aot true

about

soap?

Antarc

yang

berikut,

yang

manakah

ldok

benar

tentang

sabun?

A

Soap

forms

when fats

react with

an

alkali

Sabun

terbentuk apabila lemak

bertindak

balas dengan

alkoli

B

Soap

forms

scum

in

soft water

Sabun membentuk kekat dengan

air

lembul

C

Scum

decreases the

effectiveness of

the

cleansing

action of

a soap

Kekat

mengarangkan keberkcsanon tindakan

peneucian

sahun

D

The

presence

of

magnesium ions and

calcium

ions

in

soap

forms

scums

Kehadiran ion magrcsium dan ion

kalsium dalam sabun

menghasilkan kekat

l9

454u1

[Lihat

sebelah

c

454U1


20/83

SULIT

40

Table 2 shows the subatomic

particles

of

P

and

Q.

Jadual2

menu4jukhan

zarah-zarah subatom

bagi

P danQ

Neutron Proton

P

6

5

a

5 5

Table2

It

shows

that

P

and

Q

Ini

menunjuk*an?

danQ

I

are

both

positively

charged

acblah

bercas

po,ritif

II

have

the

same

nusleon number

mempunyai nombor

rruHeonyang sama

Iil

have

the

same

number

of

elechons

mempunyai bilangan elektran

yang

sama

IV are

particles

of

the same elements

adalah

unsur

yang

sama

A

I

and

II only

B

II

and III

only

C

II

and

lV only

D

III

and

IV

only

4l

The

following

equation shows

the

reaction between

magnesium

and

hydrochloric

acid.

Persamaan

berikut menunjukkan

tindak balas

antara

magnesium

fun asid

hidroHorilc

M&rl

+

2HCl

tuql

)

MgCl2("ol

+

HzGl

What is

the volume

of

hydrogetr

gff,

H2

prroduced

if

0.05

mol

of hydrochloric

acid

rpact

with

excess

magnesium

ribbon

at

standard temperature

and

pressurc

(srP)?

[Molar

volume

of

gas

at

STP

:22.4

dm3mol-r]

Apakah isipadu gas

hidrogen,H2

yang

terhasil

jika

0.05

mol

asid hidroHorik

bertindakbalas

dengan

pita

magnesium

berlebilnn

pada

suha

dan

tekanqt

piawai

(STP)?

lMolar

volune

of

gas

at

STP

:22.4

dm3

mol-r]

A

56

cm3

B

60

cm3

C

l12cm3

D

120 cm3

2A

454u1

sebelah


21/83

SULIT

42

Gas

X

is

used

in

airships and weather

balloons

because

of

its low density.

Gas X

is

Gas

X

diganakan dala n kapal

udara dan

belon

kajicuaca

disebabkan

ketumpatannya

yang

rendah.

Gas

Xadalah

A

Helium

B

Neon

C

Argon

D

Krypton

43

The

following

equation

shows

the formation

of

magnesium oxide.

Persamaan

berikut

men

unj

ukkan

pem

bentukan

magnesi

um

oksida.

2Mg

'1Oz

*

2MgO

What

is

the

relative formula

mass

ofthe

compound, magnesium oxide?

Apakah

jisim

formula

relatd

bagi

sebatiut

magnesium oksida

tersebut

?

[Relative

atomic

mass :

Mg=24; O

:16]

U

Table

3

shows information

about two

voltaic

cells.

Jadual

3

memmjufr*an maHumat

tentang

dua

sel

kimia

.

Table

3

What

is

the

potential

diflbrence

between

metal

Q

and R?

Apafra], bezo kcupayaan

di urtara

logatn

Q

danR?

A

0.97

V

B

2.t4Y

c

2.23

V

D

2.67

V

454ut

2l

4S4lll

sebelah

^A.

4A

832

c24

D16

Pairs

of

metal

Pasangan

logom

Potential difference

/

V

Beza

keupoyaan/Y

Negative terminal

Terminol

negatif

Q

and

Copper

Qdan

Kuprum

t.7a

a

R and Copper

Rdan

Kuprum

0.53 Cu


22/83

SULIT

22

4$4t/t

45

The

equation

shows the

reaction between

sulphuric

acid

and

potassium

hydroxide.

Persanaan

di bawah

menunjuft:lcon

tindafi:balas antara

asid

sulfurik

dan

kalium

hidroksida.

HISO*

+

2KOH

-'*

trGSOr

+

2I12O

What

is

the

volume

of

0.1 mol

dmi

potassium

hydroxide

solution

which

can

neutralise 20.0

cm3

of

0.1

mol

dm-3

sulphuric

acid?

Berqakah

isipadu

larutan

kalium

hidroksida

0.i

mol

dm'3

yang

diperlakan

unnk

meneutralkar

20.0

cm3 0.1

mol

dn-3

asid

sutfurik'l

A

10.0 cm3

B

20.0

cm3

C

40.0

cm3

D

80.0

cm3

46

The

following

equation

shows

a

double

decomposition reaction.

Persamaan

berikut

menunjuk*an tindak

balas

pengwaian

ganda

dua.

Pb{NO3)2

+

2KI

--'

PbI2

+

2KNO3

The ionic equation

for

this

reaction

is

Personaan

ion

untuk tindak

balas

ini

adalah

A

Pb

2*

+

l-

--+

PbI:

B

Pb2*

+

2l'

-'

Pblz

C

K*

+NOr'---'KNO:

D

2K

*

+

No3-

--*

2KNor

47 A

compound FeXs

is

formed

from

the reaction

between

0.1 mol

of

iron

and

10.65

g

of

element

X.

What

is

the

relative

atomic

mass

of

element X?

[Relative

atomic

mass

:

Fe:56]

Suau

sebaticm

FeX3

terbentuk

dori

tindakbalas antara

0.1mol

besi

dengan 1A.65

g

unsur

X

Apakahjisim

atom

relatf

bagi

unsurX?

frJisim

atom

relatif

: Fe

=

56J

A

35.5

B

35.0

c

32.5

D

32.A


23/83

SULIT

4541n

48

Table 3 shows the total volume

of

gas

collected

at

regular intervals

in

a

reaction.

Jadud

3

menuniukkan

jumlah

isipadu

gas

yang

dikumpul

pada

sela masayang

sekata

dalam

suatu

tindak

balas.

Time/

s

Masa/

s

0 30

60 90

t2a

r50

180

zta

Total

volume

ofgaV cm'

Jamlah

isipadu

gas/

cm3

0 2.A

3.7


24/83

SULIT

50

Diagram 15 shows

the apparatus

set-up

to

investigate

a

redox

reaction.

Rajah

15

menunjukkot su;uwu

radas untukmengkaji

satu

tindakbalas

redoks.

gradute

elactrode

elck*td karbon

X soLd:n

Iarlatart]{

24

434ut

Dilute

su$hric acid

Asrd

su{ur*

catr

[Lihat

sebelrh

U-

tube

nub U

Diagram 15

The colourless

potassium

iodide

solution

becomes

a

brown

Which

of

the

following

is

X

solution?

Larutan kalium

idida

tanpa

wama menjadi

loutan

perang.

Antara

berikut,

yangmanakah

larutanX?

A

Chlorine water

Air

klorin

Iron(II)

sulphate

Ferum(ll)

sulfar

Hydrogen

sulphide

Hidrogen sulJida

Sodium

chloride

Natrium

Horida

QUESTTONS

END FIERE

solution.

B

C

D

454u1



25/83

PROGRAM PENINGKATAN PRESTASI AKADEMIK SPM

TAHUN 2012

PERATURAN PEMARKAHAN

CHEMISTRY

PAPER MARKS

Paper 1 50

Paper 2 100

Paper 3 50

Total 200

Jumlah markah diskalakan kepada 100%

CHEMISTRY

Paper 1

1 B 26 C

2 C 27 B

3 D 28 A

4 A 29 C

5 B 30 D

6 B 31 A7 B 32 D

8 A 33 D

9 D 34 B

10 C 35 D

11 D 36 D

12 D 37 C

13 C 38 C

14 D 39 B

15 A 40 D

16 D 41 A

17 D 42 A18 C 43 A

19 B 44 C

20 C 45 C

21 A 46 B

22 B 47 A

23 A 48 B

24 B 49 C

25 B 50 A

A = 12 ; B = 13 ; C = 12 ; D = 13



26/83

SULIT

Nama:

Tingkatan:

PENINGKATAN

PRESTASI

AKADEMIK

SPM

PROGRAM

CHEMISTRY

Paper

2

Two

hours

and

thirty

minutes

JANGAN BUI(A

KERTAS SOATAN

INI

SEHINGGA DIBERITAHU

1.

2.

Kertas

soalan

ini

adalah

dalam dwibahasa.

Soalan

dalam

Eahasa

lnggeris mendahului

soalan

yang

sepadan

dalam

Bahasa

Melayu.

Calon

dibenarkan menjawab keseluruhan

atau

sebahagian soalan

sama ada

dalam

Bahasa

lnggeris

atau

Bahasa Melayu.

Calon

dikehendaki membaca

maklumat di

halaman belakang

kertas

soalan

ini.

Untuk

Kegunaan

Pemeriksa

Bahagian

Soalan

Markah

Penuh

Markah

Dioeroleh

A

1

10

2

10

3

10

4

10

5

10

6

10

B

7

20

8

20

c

9

20

10

20

Jumlah

4.

Kertas

soalan

inimengandungi

27

halaman bercetak

SULIT



27/83

4S4ln

2

SULIT

{Lihat

sebelah

INFORJ}'ATION

FOR CA}I

DI

DATES

MAKLUMAT UNTUKCALON

l.

This

question

paper

consists

of three

sections:

Sections

A,

B

and C.

Kertas

soalan

tni

mengandmgi tiga bahagian: Bohaglan

A,B

dan

C.

2. Answer

all

guestions

in Section

,A,.

Write

your

answers for Section A in the spaces

provided

in

the

question paper.

Jaw

ab semua

soalan

dalam

Bahagian A. Tul iskan

j

aw

apan

6agz

Sahegi an A

da

lam

rucng

yang

disediakan dalam

kertas

soalan

3.

Answer

one

question

from Section

B and

one

question

*om

Section

C.

Write

your

answers

for

Section

B

and

Section

C

on

the

'writing

paper'

providd

by

the

invigilaton.

Answer

questions

in Section B

and Section

C

in detail.

You

may use equations,

diagrams, tables,

graphs

and other suitable methods

to

explain

your

answer.

Jswab

sttu

soalan

daripada

Bahagian B dan satu soslan

dcripda

Bahagian

C.

Tuliskan

juwapan

bagi

Bahagian

B

dan

Br.hagitn

C

pada

haloman

bergaris

di

bahagian

akhir

kertas soalan

ini.

Jawob

Bahagian

BdanBlthrgianC

dengon

terperinci.

Anda

boleh menggunakan

perserrnean,

gambar

rqiah,

jadual,

grof

dan

cara

lain

yang

sesuni untuk menjelasktn

jawapan

anda

4-

Show

your

working.

It

may help

you

to

get

marks.

Tunjull


28/83

4S4tn

SULIT

Section

A

16A

marksl

Answer

all'questions

in tlris

section

Jowob

sernufr

soalan

dalam

hahagian ini.

Figure

I show the electron

arrangetnent of

three atoms

of elernents P,

Q

and

R

Rajah

I

menunjuk*an susunan

eleloron bagi

tiga atom unsw

P,Qdan

R

Figure

I

(a)

Write the electron &rangement for

the atoms

of

element

R.

Tuliskan

susunctn

elektron

bagi atom

unsur

R.

{l

markl

(b)

Identify

the

position

of element

Q

Kenol

pasti

kedudukan unsur

Q.

{l

mark}

(c) (i)

Which

element

is

chemically

inert?

Unsur

yang

manakah lengai

dari

segi kimia?

ll

markl

(ii)

Give one

reason

for

the

answer

in

c

(i)

Beri satu sebab bagi

jawapan

di

c

(i)

ll

narkl

(d)

Element

Q

dissolves in

waterto

form

an

acid

and a

strCIng bleaching

agent.

Write

the

chemical formulae

of

the bleaching agent.

(Insur

Q

larut

dalam

air

untuk

membentuk satu

asid dan satu agen

pelwnr

yang

huu.

Tuliskan

formula

kinia bagi

ogen

pelunhr

ltu.

U

markj

[Lihat

sebelah

4S4tn


29/83

454tn

STILIT

(e)

Another

element

S has a

proton

number

of 9.

V/hich

element shows

similar chemical

properties

to element S?

Uwur

Inin,

S mempunyai nombor

proton9.

Unsw

yang

manakah menunjuldran

sifat

kimia

yang

scna

dengan unsur

S7

$

mark\

(g

(i)

Which

element. react

vigorously

with

water?

Urcur

yong

manoftah

benindak

balas

dengan

cergcw dengan

air?

$

nar*l

(ii)

Based on

the answer

in

(i)

,write

the

chemical equation

for

the

reaction"

Berdasarlcon

jawapan

di

fii)

,tulislnn

perscrrflaan

Hmia bagi

tindak balas

itu.

[2mwksl

(g)

Arrange the

atomic

size

ofelements

P,

Q

and

R starting

from

the

smallest.

Sustmkon

saiz atom unsur P,Q den R bermula daripada

yang

paling

kecil-

ll

narkl

ll,ihtt

s*helah

4

454t/2


30/83

454tn

t

Diagram

2

shows an

experiment

o dctermine

the

empirical

formula

of

copper

(It)

oxide.

Rajah

2

menunjulr.kan satu

ekperimen antuk

menmtr*anfornula

empirik

kuprum(ll\

obida.

Combustion tube

Tabung

pembakaran

Coppe(Il)

oxide

Kupnn(II)

oksida

'Hydrogen

flame

Nyalaan hidrogen

Dry

hydrogen

gas

\

Gas hidrogen

kering-

Heat

Ponaskon

Diagram

2

(a)

What is meant by empirical formula?

Apakah

yang

dimoksttdlcan dengot

formula

empiri

k

2

fi

nnrkl

(b)

Before

copper(Il) oxide

powder

is

heate{

dry

hydnrgen

gas

is

flowed

through the

combustion

tub

for

a

while.

Why?

Sebelum

serbuk

hpram(ll)

okida

dipouskan,

gas

hidrogen kering dialirlcan

melalut

tiub

pembakoran

seloma

beboapa

ketiha.

Mengapa?

ll

markl

(c)

State

the

observation that

happens

to copper(Il) oxide after heating.

Nyatukan

pemerhaticn

lang

berlahu

kepada

kuprun(Il)

akida

selepas

pemanosun.

fi

nmkl

[Lihatmbelah

$ruT

#tn


31/83

4$4tn

6

(d)

Table

2

shows

the

result obtained

in

tfte

experiment:

Jadaat

2 menunjrkkan

keputusan

yang diperolehi

dalam

eksperimen

di

atos

:

SULIT

Mass

of

combustion

tube

+

asbestos paper

Jisim

tiub

pembakaran

*

kertas

asbestos

58.36

g

Mass

of

combustion

tube

+

asbestcs

paper

+

coppe(ll)

oxide

Jisim

tiab

nembalcaren

+

kertas

asbestos+

fuprw(ll\

olsida

91.95

g

Mass

of

cornbustion tub

+

asbestos

paper

+

copper

Jisim tiub oembakaran

+

kertas asbestos*

kuprwn

85.2a

g

Table

2

(i)

Based

on Table

2,

Berdosarkan Jadual

2,

Calculate the

mass

of

coppr

and

the mass of

oxygen

that

have

reacted.

Hitungkan

jisim

kuprum dan

jisim

oksigen

yang

telah bertindak

balas.

Mass

of

copper

:

Jisim

kuprum:

Mass

of

oxygen

:

Jisim

oksigen:

Ll

markl

(ii)

Calculate

the ratio

of

moles

of

coppr

atoms

to

oxygsn

atoms.

Hitungktn nisbah mol bagi atom

kuprum

kepada atom

oksigen.

I

Relative

atomic mass

/Jisim

atam relatd:0

=

16

;

Cu:64

]

12

marks]

(iii)

Determine

the

empirical formula

of

copper

(II)

oxide.

Tentuksnformula

empirift kuprum

(Il)

oksida-

fl

narkl

(iv) Write

the

chemical

equation

for the reaction

in

the

experiment.

Tulis

persamaan

bimia

bagi

tindakbalas

dalau

eksperimen tersebut'

[2

narksl

(v)

This method

is not

suitable

to determine the

empirical

formula

of magnesium

oxide.

whv?

Kaedoh

ini

tidak sesusi

untwk

menentukanformula

empirik

bagi

magnesium

olcsida.

Kenapa?

{l

nnrkl

[Lihat

sebelah

454tn


32/83

4gln

3

Reaction

R

Tinda*balasR

SULIT

Ammonium

sulPhate

Ammonium

sulf*

(NH4hSO4

p

and

e

are

industrial

processes

to manufrcture

sulphuric

acid

and

ammonia

respectively'

Sufptrgic

acid

and

ammonia

are usd

to

manufacture

ammonium

sulphate

as

shown

in

Diagram

3.1

p

ian

Q

adalah

proses-proses

indttspi

untuk

menghasilkan

asid

salfwik

don

anmonia

maslng'

masiing.)"sid

sutfurik

ioi

*rirni"

digwahan

rmtik

mengftasilkan

ammcnium

sulfat

seperti

dala*t

Rajah3.l

Diasram

3.1

(a)

Name

Namakan

Process

P:

Proses

P

(i)

{ii}

Process

Q

Proses

Q

12

marksl

{b)

State

one

raw

material

needed

for

procsss

Q?

Nyvtakon

satu

bahan

mennh

yang dtperlukan

mtuk

proses

Q?

U

nork]

(c)

(i)

Write

a

balanced

chemical

equation

for

reaction

R

Tulis

persamaan

Hmia

yang seimbang

bagi

tindak

balas

R

12

mnrksl

[Lihat

sebelth

S4ln


33/83

4gtn

(i

i)

SULIT

State

one

use

of

ammonium sulphate

Nyatakan

satu kegunaan ammonium

sulfat

ll

mark\

(iii)

Calculate

the

percentage

of nitrogen by

mass

in

ammonium

sulphate

Hi tung

pe

ratus nitrogen mengikut

j

is

im bagi

amnonium sulfat.

I

Relative

atomic

mass

/

Jisim stom relatif:

N

:

14

;

O

:

16;

S

=

32;

H

=

I

J

f

2 nartcl

Diagram 3.2

shows

the structuralformula of the

polymer polyvinyl

chloride

Rajah 32

menunjuk*anformula

struktur

bagi

polimer

polivinil

Horida

HCI

C

I

H

Diagram

3.2

Draw

the structural

formula

for

its

monorner

LuVsformula

struhur

bagi

monomer

polimer

tersebut

I I

nark]

The

use

of

synthetic

polyrners

extensively

in

our

daily life has become

an

issue

of

environmental

pol

lution.

Penggunaan poliwer

sintetik secara

berlebihan didalom kehidupan seharian

telah

menjadi isu kepada

pencemaran

alam

sekitar.

Give one method

to overcome this

problem.

Berikan

salu

kaedah

untuk

mengatasi masalah

ini

I

lmark

1

[Lihat

sebelah

gtiLrT

(d)

I

H

{e)

454tn


34/83

454tn

4

SULIT

Diagram

4.I

and

4.2

shows

a

set up apparatus

to

investigate

the

role

of

water

for

acid to

show its

acidic

properties.

Rojah

4.1 ond

4.2 menunjukkan radas

wuk

menglaji

peranan

air

untuk

asid

menuniukJan

sdat

keasidannya.

Dry

hydrogen chloride

gas

Gas

hidrogen

Horida

kcrW

Methylbenzene

Metilbewena

Diagram

4.1

Dry

hydrogen

chloride

gas

Gas

hidrogen

Horida

kcring

Water

Air

Diagram

4.2

(a)

Write

the chemical

formula

of

hydrogen

chloride .

Tulisformula

kimia hagi

hidrogen

Horida

ll

markl

(b)

(i)

Dry hydrogen chloride

gas is bubbled

in

methylbernene

for

5

minutes

as

shown

in Diagram 4.1,

then

tssted

with

a

piece

of blue

litrnus

papr.

State

the observation.

Gas

hidrogen

Horida

kertng

dialirkan

masuk dalam

metilbewena

selama 5

minit

seperti

yang

ditunjuW@n

dalam

Rnjah

4.1,

kemudian diuji

dengan

sekeping kertas

Iitmus

b

iru.

Nyatakan

pemerhatian.

ll

norkl

(ii)

Explain

your

answer in

b(i)

Jelaskan

jawapan

anda

dalamVi)

{2

marksl

flihnt

sebclah

454rn


35/83

4541n

SULIT

(c)

Diagram 4.2

shows

dry hydrrrgen

chloride

gas

bubbled into water

for

5

minutes.

The

solution

is

then

divided

into two

parts,

Part I and Parf II.

Table 4

shows the observations

of

the

two

tests

conducted

on the

two

parts.

Rajah 4.2

menunjukkan

gas

hidrogen

Horida

kering

dialirtan

masuk dalam

air

selama

5

minit

.

Larutan

itu dibahagikan lepada

dua

bahagian,

Bahogianl

dan

Bahoglaull.

Jadual

4

mentnjulckan

pemerhatian

bagi dua

ujian

yang

dijalankan

ke

atas

duo

bahagian

ita.

Part

Bahagian

Test

Ujian

Obseivation

Pemcrhorian

I

Add

magnesium

carbonate.

Testgas

given

off

with

lime water

Tambahkon

m agn

e

s

i*n

karbonat.

Uji

gas yang

terbebas dengon

air kapw

Effervescence

Pembuakan

Lime water turns chalky

Air

kapur

menjadi

luruh

II

Add

magnesium

ribbon.

Test

gas

given

offby

pufting

in

lighted wooden

spl

inter

Tambahkan

pit

a ma

gn

es i

wn.

Uji

gas

terhasil dengan memasukkan

Irayuuji

menyala

Table

4

(i)

State

the

role

of

water

that

caused the

produced

gas

turns

lime water

chalky.

Nyatakan

peranan

air

yang

menyebabkan

penghasilan gas

yang

menukarkan

air

kapur

menjadi keruh.

$

mar*l

(ii)

Write an ionic

equation to

the

reprsnt the

production

of

gas

in

Part I

Tulis

persamaan

ion

unuk

mewakili

penghasilan gas

dalam

Bahagian

I

12

nnks]

(iii)

Complete

the

observations

in Table

4.

Lengkapkan pemerhatian

dalom

Jadual

4

[2

marksl

(iv)

What

is

the conclusion drawn from the observation in both

part?

Apakah

kesimpulan

yong

boleh

dibuat

daripada

pemerhatian

dalom

keduoduo

bahagian.2

t0

ll

markl

llihat

sebelah

454tn


36/83

4541n

1I

5

Diagram 5 shows

the flow

chart

for

dte

reaction

of

propan-l-ol.

Rajah

5 menunjukkan carta alir bagi tindak

balas

propan-l-

ol .

Compound

X

Sebatian X

Reaction

I

Tindak

balorl

alumina

Heated

Panaskan

HHH

tll

H-C-C-C-OH

trl

HHII

Propan-l-ol

Reaction

II

Tindalc balasll

Acidified

KMnOe

-------------*

KMnOt

berasid

Reaction III

l+

CH3COOH

findakbala-sfit

f

+

HzSOa

Compound

Z

Sebatian Z

Diagrarn

5

(a)

State

the

molecular

formula

of

propan-l-ol.

Nyatakanforrmrla

molehi

bagi

propan-l-

ol.

U

ma*l

(b)

The following

equation

shows complete combustion of

propan-l-ol.

Persamaan

berilat memrnjuklmn

pembakarorc

lengkap

propan-l

-ol.

C3H7OH

+

9O2

-*+

3COz

+

4H2O

2

Calculate the volurne

ofcarbon

dioxide

gas

produced

if

0.1

mol

of

propan-l-ol

is

bumt

completely

in

air.

Ilinmgkan

isipadu

gas

karbon

dioksida

yang

terhasil

jika

A.l

mol

propan-l-al

dibakar dengan

Iengkap

dalam udara.

[Molar

volume

:24

dm3

mol-l

at

room condition]

12marksl

[Lihet

scbelsh

SULIT

Compound

Y

SebatianY

454tn


37/83

4s4tn

12

(c)

Compound

X

is

an

unsaturatcd

hydrocarbon.

SebatianX

adalah hidrokarbon

tery.

(i)

What

is

the meaning

of

hydrocarbon?

Apakah

yang dimaksudkm

dengan

hidrokarbon?

SULIT

ll

nmkJ

(ii)

Complete the

following

diagram

to collect compound

X

in reaction

I.

Lengkapkan

rajah

berihtt

unluk

mengutip

sebatian

X

dalam ttudak balas

l.

Alumina

12

marksJ

(d)

hopan-lol

is

addsd

with

acidified

potassium

marganate

(VIt)

solution

and heated

in

reaction II.

Propn-l-

oI ditambahhan

dengan

larutan

kaliun mangout

(Yl7)

berasid dan dipanaskan

dalan

tindak balas

lL

(i)

What

is

the

name

of

reaction

II?

Apakah

nans

tindak bolas

ll?

$

mark

Name

compound

Y.

Namakan sebatian

Y.

t

warrn

(ii)

hopan-l-ol

soaked

with

glass

wool

l1

markl

[Lihet

sebelah

4ytn


38/83

4$fin

13

(e)

Compound Zhas the

following

properties:

.

SebatUn Z

mempnyai

stfat-stfat

beri*at

:

STJLIT

o

Float on

water

Terapwg

otas oir

r

Fruity

smell

Yangi

bwh-buahan

(i)

Draw the

sfuctural

formula

of

oompound

Z.

L*is

formula

smrkur

bagi sebatian

Z.

$

mnkl

(ii)

Concer*rated

sulphuric

acid

is added

in

reaction

lll.

Explain

why?

Asid sulfurik

pelcat

ditambah

dalmt

tindak balas lll

.

Teranglan mengapa?

ll

markl

fl,ihet

sebelah

454tn


39/83

454tn

t4

STJLIT

6

(a)

Table 6

shows

the result

ofan

experimcnt

to

study

the

cffet

oftemperafure

on the

rate

of

rection

between

50 cm3

1.0

mol dm-3hydrochloric

acid

solution,

HCI

and

50 cm3

0.2

mol

dm-3

sodium

thiozulphate

soluticiq

NazSzOr.

Jdual 6 memmjuk*an kepr.hrsan

bagi

satu

elrspeimen

unn*

menglraji

kesan

guhu

kcatas

kadar

tindakbalas

*i*o

50

cm3 1.0

mol

dmo

t*uton

asid

sulfarih

HzSOr

dan 5A enf

0.2

mol

&n'3

lorutan natlium

tiosulfat,

NazSzQ.

TemperaturefC

SuhufC

30

35

40

45 50

Timc taken

for'X'

mark to

disappear

fronr sight

Masa

tanda

X'

hilansdari

pandoutt

94.8

49.9

36.1

25.2 19.8

Table 6

(a)

Balanced

the ctremical equmion

below for

the

reaction that occurs

in this erperimenL

&imbangk*t

percomaail kimia dibov,ah bagi

tindakbalas

yang

berlaht

dqlan

ekprimen

ini.

mHCl+Na2S2O3t

nNaCl+HzO

+

Soz+

S

m=

TI:

{2

narksl

(b)

Draw

the

set-up

of

apparatus used

to

measure

the

time taken

for

'X'

mark

to

disappear

from

sight.

Lakis*an

susunan

radas

yng

digwakan

untuk mengalatr

maso

tanda'X'

hilang

dti

Q

marksl

(c)

Name

the

substance

that is responsible

for'X'

mark to disappear

from

sight.

Nama*mt bahan

yvng

menyebablcan

tanda X'

hilang dari

pandangan-

fi

markl

pihat

sebelah

45/tn


40/83

{siln

15

st LIT

(d)

'Flot

a

graph

of temperature

against

time taken for'X' mark to

disappear

from sight.

I^akarkan

graf

suhu melasan

masa

tando'X'

hilotg

doi

padmgan

14

mc:ksl

(e)

Based

on

the

graph

in

(d),

sbte

the

relationship

between

temperature

and

time.

Berdasarkon

grafpada (d),

nyatakm

hubwgan

qntara

$rtu

dan masa.

lt

mrkl

[Lihet

scbelah

454tn


41/83

[Lihat

sebelah

5dln


42/83

4vtn

11

Section

B

[20

rzr:ksl

Answer

any

one

question.

Javtab

m(rnt

-rnsna

sala

soolan.

S{'LIT

1

Table

7

shows

the

proton

numberofatom

P,

Q,

Rand

S.

The letters

used

do not

represent the

actual symbols

of

the

atoms.

Jadual T

mmwJulikan

nombor

proton

untuk

atom P,

Q,

R

dcr

S.

Hun{yng diganakan

tidak

mewakili simbol

sebens atom

berkenaan.

Atom

Atom

P

a

R

s

Proton Number

Nombor

proton

t7

12

8

6

Table

7

{a)

,

Write

the electron

arrangement

for the

atom

of

element

Q

Determine

the

group

for

element

Q

Talis

susunan

elekron

bagi atom rrrrrQ.

Tentufun

funpulan

untuk

msw

Q.

pnarksl

O) (i)

Basd

on Table

7,

sel*t

two

differpnt

elemen8

that

can

form

ionic compound.

Berdasarkan Jaduol

T,

pilih

dua

unsur Malnan

yang

akan

membentuk sebation ion.

ll

nokl

(ii)

Draw

a

diagram

to show the compound

tlrat

will

be

formed

in

7(b)

(i)

Lulris

rajah

untuk menunjul*an

sebatiot

yang

terbentulc di

7(b)

(i)

12markl

[Lihat

sebeleh

454tn


43/83

4541n

ST]LTT

(c)

Diagrarn

7

shows

the molecule of carbon

dioxide.

The

bond

formed

between carbon

atom

and

oxygen

atom

are

double covalent bond.

Rajah

7

menunjuk*an molekul

karbon

dlokida. Ikatanyang

terbentuk

antara atom

Iurbon

dan atom

olsigen ialah

ilcatan

kovalen ganda dua.

18

Dagram

7

Explain

the

formation

of

this compouod

in

terms

of

:

o

Electron arrangement

r

Electrons involved

o

Particles involvod

[Proton

number

:C:6,

O:

8

J

Terangkan

tentang

pembmwkan

sebatian

ini dari

segi:

.

Susunan

elehron

t

Elektron

yang

terlibat

o

Zaroh-zorahyangterlibat.

15

narksl

(d)

Compare the

physical

propcrties

benpeen

ionic

compound and

covalent compound.

Your

answer should consist of

the following

:

o

Physical

properties

in

roorn

conditions

o

Melting

point

and

boiling

point

o

Electricalconductivity

r

Solubility

in water

and

organic solvent

o

Example ofcompound

Bandingkan sifat*ifutfizikal

di utoa

sebatian

ion don sebatian

kovalen.

Dalamjawopan

ando,

perlu

mengan&ngi

perkara

bertlatt

:

o

Keadaon

jirim

pada

kzadaan

bilik"

t

Taknt lebw

dan takst

didih

t

Kekonduksiot

elekrik

o

Keterlanttan dalan air

dan

sebatian

organic

o

Contoh sebatian

$0

marksl

[Lihat

sebelah

45/.tn


44/83

454l'n

Carbon electrode

X

Elel*rod karbonX

19

concentrated

coppe(I

I)

chloride solution

I

arut

an

hprum{ll).

kl or

da

Wlcat

Carbon elrctrode

Y

Etefuod

korbonY

SI,'LIT

[Lihat

mbelah

Diagram

8.1

shows

the

apparatus

set-up

for

the

electrolysis

of concentrated

copper

(II)

chloride

solution,

0.1

mol

dm-'

using carbon

electrodes.

Rajah

8.1

menunjulkan

susur'rcm

radcn

untuk

me4jalankan

elekrolisis

larutan

larprum(ll)

Hirida

pe

kat,

0.

l

mol

dm'

t

me ngunokan ele ldrod-e

lektrod

knrbon.

(a)

(b)

Diagram

8.1

Based

on Diagram

8.1,

sbte

the

factors

that determine

the

products

formed

at

electrode

X and

elwtode

Y.

Berdasarkan

Rajah

8.1,

nyatakanfakor-fahor

yang

menentufran

hasil

yang

terbennk

pada

elebrodXdan elekrodY.

.12,

morksl

Explain

the

reactions at

electrodes,

X

and

Y.

Include

the

following

in

your

explanation:

Terangkan tindak batas

pada

elektod,X

dan

Y.

Penerangan

anda

perla

m

r

List the

ions

atttracted

to

each

of

elecfode,

X

and

Y

Senaraikan

ion-ion

yang

tertarik

ke setiap

elekrad, X

dan

Y

r

Name

of

the

ions

selectively

discharged

at each

elechode

Nams

ian'ian

yang

dipilih

wuk

dinyahcas

di

setiap elekrd

r

The

reason

why

the ions

are

selectively discharged

Sebab

ion-ion

ini dipilih

unuk

dinyahcas

.

Half

equations

for

each

reaction

Setengah

persomaan

bagi

setiap tindak

balas

o

The observable

changes

ofthe

solution

Perubahan

yang

diperhatikon

pada

lanttan

fiO

mrksl

4S4tn


45/83

4541n SULIT

(c)

Table

I shows

the incomplete results

of

a

series

ofexperiments

carried out

to

'

c,onsmrct the

electrochemical

series

of

metals.

W,

X

and

Y are

not

the actual

symbols of

the

metals.

Jadwl

I

mmunjal4ran

keputusan

yang tidak

lenglrap

bagi

satu

siri

eksperlmen

yang telah

dijalanlwn

antukmembina

sin

elebrokimia

bagi

logun.

W, XdanY

bulcan

simbol sebenar logam-Iogam itu.

Pairs

of

metals

Pasangan

lagan

Positive terminal

Terminal

positif

Potential difference/

V

Beza keupayaan

W'

Copper

Copper

3.1

X,Y

Y

0.3

wx

X

t.8

X,

Copper

Table

8

(i)

Based

on the

values

ofthe

potential

differences,

arrange

the

metals

in

descending

order

in

the

elecbochemical

series.

Berdasarkan

niloi beza

keupcyaan,

susun

logam-logan

tersebut

dalam

tertib

menuntn dalam

siri

elekrokimia.

lt

ndf,

(iD

Predict the

positive

terminal

and

the

value

of

potential

difflerence

for

the

pair

of

metals

X

and Cu.

Explain

your

answer.

Ramulkan

terminal

positif

dan

nilai

heza

bagf

pasangan

logom

X

dan

C*

Jeloskan

jawapan

anda.

t3

markd

[Lihat

sebelab

20

4541n


46/83

454tn

2l

Cu

Copper${)

nitrate

Kaprum(ll)

nitrut

SULIT

[Lih*t

sebelah

(d)

Diagram

8.2 shows

a

voltaic

cell.

Metal

Q

is situated

below

copper

in

the

e leitroch

em

i stry

series.

Rajah

8.7

menunjakkan

saaru

sel

voltan.

Lagam

Q

terletak

di

hawah

kuprum

dalam

siri

elelctrokimia.

Metal

Q

Logam

Q

Solution

R

LarutqnR

Diagram

8.2

State

the

positive terminal

and

the

negative

lerminal

ofthis

cell-

Suggest

a

metal

that

is suitable

*

m"tal

Q

and

a solution

that

is suitable

as

solution

R.

Nyatalan

terminal

posilif

dan

tenninal

negatif

bagi

sel

ini'

iaaanske,

togam

yani

sesaai

sebagai

ligam

Q

dan

larutan

yang

sesuai

sebagai

larutan

k

14

narksl

454U2


47/83

{s4U2

SULIT

Section C

[2A

marks]

Answer

any

one

qrsstion.

Jawab

masra-mana

satu

soalan,

9

Table

9

shows

the

heat

of displacement

of

hvo

diffe,rent metals

P

and

Q

with

copper

(II)

sulphate

solution.

Jadual

9

menrmju?Jran

luba penysarm

bagi

dua logam

yong

berlainan,

P

danQ

dengan

larut

ot

kuprunt{ll)

s u

lfat.

(a)

Based

on

the

information

in

Table

9,

(i)

State one

exanple

which

could

be metal

P

and one ex{rmple

which

could

be metai

Q.

Berdasarksn maftlunat

dalam

Ja&*al 9,

Nyatalam

ssta

c{}ntoh

ymg

mwgkin

bagi

logrnnP

dffi

sdu

contoh

yang

mungkin

bagi

logamQ.

[2

marksl

(ii)

Explain

why

there

is a

difference in

the values

of

the heat

of

displacement.

Jelaskon

mengapa

terdaryt

perbezool

nilai lwba

penyesran

itu.

[4

marksl

O)

Calculate

the

change in temperature

of the rnixture in experiment

I.

{Specific

heat

capacity

of solution:

4.2 Jg't

og't

,

I:litang

perubahsn

sahu

hagi

campurcm

dalam

ehryterimen

l-

[4

markl

22

Experiment

Reactants

Bahan Tlndalcbalas

Heat of

Displecement

I{*ba

Penyesaran

(kJ

mol-I

)

I

50

cm"

0.2

rnoldm-'

coplxr

gl)sulphate solution

+

metal

P

50 crr3

0.2

moldm't larutan

kupram

{11'1sulfut

+

logamP

-336

II

50 cm'0.2

moldm-'

copper{U)sulphate

solution

+

metal

Q

50

cm3

0.2 rnoldrn-t

larutst

kuprun

(ll)

sulfut

+

logam

Q

-217

Table

9


48/83

454tn

SULIT

{c)

By

using

one

of the metal

in

9

(a)

(D,

describe

one

experiment

to

dstermine

the

heat

of

displaceinent.

Your answer

should

consist of

the

following

:

o

Procedure

of

the experiment

o

The method to calculate

the heat

of

displacement

Dengan menggunakan satu

daripda

logam

dalam

I

(aXi),

huraikan

saw

eksperimen

tmtuk

menentukan

hcba

perqrcsaran.

Jawapan anda

perlu

mengandungi

perkara

berikut

:

c

Prosedur

elsperim*t

o

Kaedah untuk

menghittmg haba

penyesaron.

[10

markrl

[Lihat

sebclah

S{JLIT

23

454tn


49/83

454J.n

10

(a)

SI]LTT

Diagram

l0

shows

an

apparatus

set-up,

its

observation

and

chemical

equation

to

investigate the displacement

of

halogen

from

its halide

solution by

halogen

P.

Rajah

ft menunjukkan susunan

radas

,

pemerhatian

dan

prsamaan

kimia'untuk

mengkaii

penyesaran

hologen daripada

larutsn

halidanya

oleh

halogenP

.

Diagnm

10

(i)

Suggest

the

identity

of

halogen

P

C

adangkan idmtiti halogen

P

U

markl

(i0

Write half equation

for the

oxidation or

rduction

prccess

that has occuned.

Tuliskon setengah

persamaan unuk

proses pengofuidaan

atet

penuntnan

yng

telah

berlalru.

[2,

narlal

{iii)

Describe a chemical

test

to

verifu

the displaced

halogen in

the

reaction.

Huraikon

sata ujian kimia

unt* mengesahkan

halogen

y(mg

tersesar

dalom

tindak

balas

ini.

13

marksT

plhet

sebelah

SULIT

24

potassium

A ,

P

iodide

solution

U

,/

larutan

\ ,{,

shake

kaliumiodida

\ I I

gonccrrg

\H-

_w

l, l,

I

-trichloroethane

l,l,l-triHoroetana

Chemical equation:

Persamaan

kimio

:

zlf.l

+

Pz

-'+

2KP

+

Ie

t_J

lr{

\#-

purple

ungu

45iln


50/83

4541n

SULIT

(b)

Table l0.l

shows

the

result

of

two

experiments to study

the

effect

of

metals

M

and

N

on the rusting

of

iron

when

coiled

on

iron nail.

Jodual

l0

.l

fienunjukkan

keputusan

dua eksperimen untuk

mengkaji

kesan

logam

M

dan

N

ke

atas

pengaratan

besi

apabila

dililitkan

pada paku

besi.

Experiment

Eksnerimen

0bservation

Pemerhatian

Experiment

I

Eloperimenl

Hot

agar

solution

+

potassium

hexacyanoferrate

(l

l$

solution

+

phenolphthalein

larutan

agar-cgar

panas

*

kalium

heksasianoferat

{lllt.

+

fenolftalein

metal

M

logamM

Blue

spots

formed

in

the

agar

Tompok biru

terbentuk

dolam

agar-sgar

Experiment

II

Eksperimen ll

Hot

agar

solution

+

potassium

hexacyanofurrate

(l

II)

solution

+

phenolphthalein

larutan

agar-agar

panas

+

kaliam

helasasianoferat

(lfl) +

fenalftalein

metal

N

lopamN

Pink

spots

formed in

the

agar

Tompak

merch

jambu

terbentuk

dalam agar-

agar

Table

l0.l

(i)

Explain

why

there

is a difference

in observations for

Experiment

I

and

II.

Terangkan

mengopa

terdapal

perbezaan

dalam

pemerhalian

bagi

Eksperimenl

dan

Il.

15

rnarksl

(ii)

Arrange

in ascending

2012 Chemistry Kedah With Answer

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