(i).............................. (ii)..............................

BateriBatteries

Bekas kacaGlass container

Air + Asid sulfurik cair Water + Dilute Sulphuric acid

SuisSwitch

AmmeterAmmeter

Elektrod karbon Carbon electrode Elektrod karbon

Carbon electrode

1) Susunan radas dalam Rajah 1(a) digunakan untuk menentukan nisbah atom hidrogen kepada atom

oksigen dalam satu molekul air.

The apparatus set-up in Diagram 1(a) is used to determine the ratio of hydrogen atom to oxygen atom in a

molecule of water.

a) Labelkan Rajah 1(a) dengan mengisi kotak-kotak dengan perkataan yang sesuai.

Label Diagram 1(a) by filling the boxes with the suitable words. [2 markah][2 marks]

b) Namakan proses yang ditunjukkan dalam Rajah 1(a).

Name the process shown in Diagram 1(a).

_______________________________________________________________________________ [1 markah]

[1 mark]

c) Apakah formula kimia bagi air?

What is the chemical formula of water?

_______________________________________________________________________________ [1 markah]

[1 mark]

d) Dari Rajah 1(a), tentukan nisbah atom hidrogen kepada atom oksigen dalam satu molekul air.

From Diagram 1(a), determine the ratio of hydrogen atom in oxygen atom in a water molecule.

_______________________________________________________________________________ [1 markah]

[1 mark]

e) Mengapakah asid sulfurik cair ditambah dalam eksperimen ini?

Why dilute sulphuric acid is added in this experiment?

_______________________________________________________________________________ [1 markah]

[1 mark]

1

Rajah 1(a)/Diagram 1(a)

2) a) Asid dan alkali adalah dua bahan yang mempunyai sifat-sifat tersendiri. Ujian yang biasa

digunakan untuk membezakan antara asid dan alkali adalah dengan menggunakan skala pH.

Rajah 2 (a) di bawah menunjukkan skala pH dan nilai pH bagi lima bahan.

Acids and alkaline are two substances that have their own properties. One of the common tests that

used to differentiate between acids and alkaline is by using the pH scale. The Diagram 2 (a) below

shows the pH scale and the pH values for five substances.

i. Berdasarkan maklumat di atas, bahan yang manakah mempunyai nilai pH yang salah?

Based on the information given above, which of the substances has an incorrect pH value?

___________________________________________________________________________ [1 markah]

[1 mark]

ii. Nyatakan julat nilai pH bagi bahan berikut :

State the range of pH values for the following substances:

(a) Bahan berasid / Acidic substances : ___________________________________________(b) Bahan beralkali / Alkaline substances : _________________________________________(c) Bahan neutral / Neutral substances : ___________________________________________

[3 markah][3 marks]

2

Rajah 2(a)/Diagram 2(a)

CukaVinegar

1 2 3 4 5 6 7 8 9 10 11 12 13 14

Kopi Coffee

TomatoTomatoes

Susu magnesia Milk of magnesia

PelunturBleach

Rajah 2(b) / Diagram 2(b)

b) Salah satu petunjuk yang boleh digunakan untuk menguji keasidan dan kealkalian suatu bahan adalah

kertas litmus.

One of the indicators that can be used for testing the acidity and alkalinity of a substance is the litmus

paper.

Rajah 2(b) di atas menunjukkan kertas litmus merah disentuh pada seketul sabun dan selepas

beberapa saat, tiada perubahan warna yang diperhatikan. Mengapakah hal sedemikian berlaku?

Cadangkan cara yang boleh digunakan bagi membolehkan sabun menunjukkan sifatnya?

The Diagram 2(b) above shows red litmus paper being touched to soap and after a few seconds, no

colour change was observed. Why this happen? Suggest a way that can be used for soap to show its

properties?

_________________________________________________________________________________

_________________________________________________________________________________

[2 markah] [2 marks]

3

Kertas litmus merahRed litmus paperSabun

Soap

3) Rajah 3 di bawah menunjukkan dua sapu tangan, P dan Q yang serupa. Semua sapu tangan itu adalah

basah dan dijemur di bawah cahaya matahari selama 2 jam dalam keadaan berikut: Sapu tangan P tidak

dilipat dan sapu tangan Q dilipat 4.

Diagram 3 below shows two identical handkerchiefs, P and Q. The two handkerchiefs are wet and are

dried in the sun for 2 hours in the following ways: handkerchief P is not folded and handkerchief Q is

folded into 4.

P Q

a) Sapu tangan manakah yang akan kering dahulu? Mengapa?

Which handkerchief will dry first? Why?

_____________________________________________________________________________

_____________________________________________________________________________

[2 markah][2 marks]

b) Rayyan berjalan di tengah hujan. Bajunya basah. Untuk mengeringkan baju itu, dia berdiri di

bawah kipas angin yang berputar.Terangkan bagaimana keadaan itu boleh membantu Rayyan

mengeringkan bajunya.

Rayyan walked in the rain. His shirt was wet. He stood under a moving fan to dry his shirt.

Explain how the situation can help Rayyan dry his shirt.

_____________________________________________________________________________

_____________________________________________________________________________

[2 markah][2 marks]

c) Kedua-dua penyejatan dan pendidihan adalah proses di mana air bertukar kepada gas. Adakah

penyejatan dan pendidihan berlaku pada sebarang suhu? Tulis YA atau TIDAK di dalam petak

yang disediakan.

Both evaporation and boiling are processes by which water turns into a gas. Do evaporation and

boiling occur at any temperature? Write YES or NO in the box provided.

Penyejatan / Evaporation

Pendidihan / Boiling

4

Rajah 3 / Diagram 3

[2 markah][2 marks]

pure water

air tulen

water out

air keluar

P

Q

water in

air masuk

Cecair JLiquid J

X

Termometer Thermometer

Serpihan porselinPorcelain chips

4) Rajah 4 menunjukkan susunan radas bagi satu eksperimen.

Diagram 4 shows the set-up of an experiment.

a) Namakan radas yang berlabel X.

Name the apparatus labeled X.

____________________________________________________________________________

[1 markah][1 mark]

b) Nyatakan dua proses yang berlaku dalam eksperimen itu.

State two processes that take place in the experiment.

____________________________________________________________________________

____________________________________________________________________________

[2 markah][2 marks]

c) Labelkan arah aliran air masuk dan keluar bagi radas X pada Rajah 4.

Label the direction of the flow of water in and out the apparatus X on Diagram 4.

[1 markah][1 mark]

d) Mengapakah cecair J tidak sesuai diminum?

Why is liquid J not suitable to be consumed?

_____________________________________________________________________________

[1 markah][1 mark]

e)Nyatakan satu kegunaan cecair J.

State one use of liquid J.

_____________________________________________________________________________

[1 markah][1 mark]

5

Rajah 4 / Diagram 4

5) Rajah 5 di bawah menunjukkan proses rawatan air.

The Diagram 5 below shows the water treatment process.

a) Berdasarkan Rajah 5 di atas, terangkan proses yang berlaku di P dan Q.

Based on Diagram 5 above, explain the process occur in P and Q.

P :_____________________________________________________________________

_____________________________________________________________________

Q : ____________________________________________________________________

_____________________________________________________________________

[2 markah][2 marks]

b) Alum dan kapur mati ditambah ke dalam tangki P. Terangkan fungsi bagi kedua-dua bahan

tersebut ditambah.

Alum and slaked lime are added into tank P. Explain the function of both substances.

_____________________________________________________________________________

_____________________________________________________________________________

[2 markah][2 marks]

c) Air adalah satu keperluan asas manusia. Terangkan cara-cara yang boleh diambil oleh

pengguna untuk menjimatkan air.

Water is one basic necessities of humans. Explain the ways should be taken by consumer to

save water.

_____________________________________________________________________________

_____________________________________________________________________________

[2 markah][2 marks]

6

Takung simpananReservoir

Tangki percampuranMixing tank

Tangki penurasan

Filtration tank

Tangki simpananFiltration tank

Ke kolam pembekalTo the supply panel

Rajah 5 / Diagram 5

6)

(a)Nyatakan takat beku bagi ais dalam bikar tersebut.

State the melting point of the ice in the beaker.

_____________________________________________________________________________

[1 markah] [1 mark]

(b)Ramalkan apakah yang akan berlaku pada takat beku ais jika sedikit garam ditambahkan ke

dalam bikar.

Predict what will happen to the thermometer reading if some salt is added into the beaker.

_____________________________________________________________________________

[1 markah] [1 mark]

(c) Terangkan perbezaan takat beku bagi ais sebelum dan selepas garam ditambahkan.

Explain the difference in the melting point of ice before and after salt is added.

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

[2 markah] [2 marks]

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Maziha melakukan satu eksperimen untuk menyiasat kesan bendasing terhadap air.

Sebikar ais disediakan.

Termometer diletakkan ke dalam bikar yang mengandungi ais untuk menentukan takat

beku ais.

Maziha carries out an experiment to investigate the effects of impurities on water.

A beaker of ice is prepared.

A thermometer is placed into the beaker to determine the melting point of ice.

Rajah 6 (a)/ Diagram 6(a)

TermometerThermometer

Tabung DidihBoiling tube

Air sulingDistilled water

BikarBeaker

0C

(d)Termometer merkuri digunakan secara meluas di makmal. Terangkan mengapa.

The mercury thermometer is widely used in the laboratory. Explain why.

_____________________________________________________________________________

_____________________________________________________________________________

[2 markah] [2 marks]

(e)Rajah 6(b) menunjukkan jalan telah dilitupi dengan ais. Jalan adalah licin dan bahaya untuk

laluan kenderaan. Apakah cara yang dapat dilakukan untuk mengurangkan risiko kemalangan?

The Diagram 6(b) shows that a road is covered with ice. The road is slippery and dangerous for

travelling. What is the way to reduce the risk of accidents?

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

[4 markah] [4 marks]

8

Rajah 6 (b)/ Diagram 6(b)

Air merupakan sumber yang sangat penting dalam kehidupun manusia. Air tulen ialah air yang tidak mempunyai warna, bau dan rasa serta tidak mengandungi mineral yang diperlukan oleh badan kita. Air boleh wujud dalam tiga keadaan jirim iaitu pepejal, cecair dan gas.

Salah satu sifat fizikal air ialah kebolehan berubah daripada satu keadaan kepada keadaan yang lain apabila disejukkan atau dipanaskan. Apabila kita memanaskan air, air menjadi panas dan mendidih menjadi wap air. Apabila disejukkan, air akan membeku menjadi ais.Water is a very important resource in human life. Purified water is water that does not have colour, smell and taste and it does not have the minerals needed by our body. Water can exist in three states: solid, liquid and gas.

A physical property of water is that it can be changed from one state to another when cooled or heated. When we heat the water, it boils and changes into vapour. When the water is cooled, it freezes into ice.

7)

(a) Cadangkan berserta penerangan cara membersihkan air supaya selamat diminum.

Suggest with explanation how to purify water so that it is safe for drinking.

______________________________________________________________________________

______________________________________________________________________________

______________________________________________________________________________

______________________________________________________________________________

[3 markah] [3 marks]

(b) Mengapakah air suling tidak sesuai dijadikan sebagai air minimum?

Why is distilled water not suitable as drinking water?

______________________________________________________________________________

______________________________________________________________________________

[2 markah] [2 marks]

(c) Cadangkan satu cara untuk menghasilkan air suling.

Suggest one way to produce distilled water.

______________________________________________________________________________

9

[1 markah] [1 marks]

(d) Rajah 7 menunjukkan satu cara pembersihan air yang dapat membersihkan air sungai. Apakah

kaedah pembersihan air ini? Adakah air ini sesuai dijadikan air minimum? Terangkan jawapan

anda.

The Diagram 7 shows a method of water purification to purify river water. What type of purification

is this? Is the water produced suitable to be used as drinking water? Justify your answer.

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

_____________________________________________________________________________

[4 markah] [4 marks]

10

Rajah 7/ Diagram 7

Air sungai / River water

Pasir halus / Fine sand

Pasir kasar / coarse sand

Hasil turasan / Filtrate

Batuan kecil / Pebbles

Batu kerikil / Gravel

KERTAS SOALAN TAMATEND OF QUESTION PAPER

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