2010 chemistry qa perak(gerak+gempur)

8/13/2019 2010 Chemistry Qa Perak(Gerak+Gempur)

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Gerak Gempur SPM Chemistry paper 1

1 Which of the following substances is made up of atoms?Antara berikut, bahan yang manakah terdiri daripada atom?

A

B

C

D

Iron

Ferum

Oxygen gasGas oksigen

Naphthalene

Naftalena

Sodium chlorideNatrium klorida

2 The equation below shows the reaction between magnesium and hydrochloric acid,Persamaan di bawah menunjukkan tindakbalas antara magnesium dan asid hidroklorik

Mg(s) + 2HCl(aq) MgCl2(aq) + H2(g)

Which of the following statements is true?

Antara pernyataan berikut, yang manakah benar?

[Relative atomic mass of H = 1. Mg = 24, Cl = 35.5][Jisim atom relatif H = 1, Mg = 24, Cl = 35.5]

A

B

C

D

1 g magnesium react with 2 g hydrochloric acid to produce 1 g magnesium chloride and

1 g hydrogen gas1 g magnesium bertindak balas dengan 2 g asid hidroklorik menghasilkan 1 gmagnesium klorida dan 1 g gas hidrogen

24 g magnesium react with 36.5 g hydrochloric acid to produce 95 g magnesium chlorideand 2 g hydrogen gas24 g magnesium bertindak balas dengan 36.5 g asid hidroklorik menghasilkan 95 gmagnesium klorida dan 2 g gas hidrogen

1 mol magnesium react with 2 mol hydrochloric acid to produce 1 mol magnesiumchloride and 1 mol hydrogen gas

1 mol magnesium bertindak balas dengan 2 mol asid hidroklorik menghasilkan 1 mol

magnesium klorida dan 1 mol gas hidrogen

1 magnesium atom reacts with 2 hydrochloric acid molecule to produce 1 magnesiumchloride molecule and 1 hydrogen gas molecule

1 atom magnesium bertindak balas dengan 2 molekul asid hidroklorik menghasilkan 1molekul magnesium klorida dan 1 molekul gas hidrogen

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3 Which of the following chemists arranged the elements in order of increasing atomic mass in ThePeriodic Table ?

Antara ahli kimia berikut, yang manakah menyusun unsur-unsur dalam Jadual Berkalaberdasarkan pertambahan jisim atom?

A

B

C

D

Dmitri Mendeleev

Johann Dobereiner

John Newlands

Henry Moseley

4 Element J has 11 electrons

Unsur J mempunyai 11 elektron.

Which of the following electron arrangements represent ion J?Antara susunan elektron berikut, yang manakah mewakili ion J?

5 The ions that are present in copper(II) sulphate solution areIon-ion yang wujud dalam larutan kuprum(II) sulfat ialah

A

B

C

Cu2+,SO42-

Cu2+, SO42-, H+

Cu2+, SO42-, OH-

A

D

C

B

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D Cu2+, SO4

2-, H+, OH-

6 Which of the following is a strong acid?Antara yang berikut, yang manakah asid kuat?

A

B

C

D

Alkyl sulphonic acid

Asid Alkil sulfonik

Ethanoic acid

Asid etanoik

Palmitic acidAsid palmitik

Nitric acidAsid nitrik

7 Which of the following is a salt ?Antara berikut, yang manakah merupakan garam?

A

B

C

D

Lead (II) oxidePlumbum(II) oksida

Barium hydroxideBarium hidroksida

Aluminium nitrateAluminium nitrat

Hydrogen sulphate

Hidrogen sulfat

8 Which of the following is true about manufactured substance in industry and its uses?Antara yang berikut,,yang manakah benar tentang bahan buatan dalam industri dengan

kegunaannya?

Manufactured substance in industry

Bahan Buatan I ndustri

Uses

Kegunaan

A PolythenePolitena

LensesKanta

B Lead glass

Kaca Plumbum

Mirror

Cermin

C Photochromic glass

Kaca fotokromik

Optical lenses

Kanta cermin mata

D Plastic reinforced with glassPlastik yang diperkukuhkan dengan kaca

Test tubeTabung uji

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9 Which of the following statements best explain the decrease in rate of decomposition ofhydrogen peroxide with time?

Antara pernyataan berikut,yang manakah menerangkan pengurangan kadar penguraianhidrogen peroksida dengan masa ?

A

B

C

D

Product of reaction decreasesHasil tindak balas berkurang

Temperature of hydrogen peroxide decreasesSuhu hidrogen peroksida berkurang

Volume of hydrogen peroxide decreases

Isipadu hidrogen peroksida berkurang

Concentration of hydrogen peroxide decreasesKepekatan hidrogen peroksida berkurang

10 Which of the following chemicals is used to keep latex in its liquid state?Antara bahan kimia berikut, yang manakah digunakan untuk mengekalkan lateks dalam keadaan

cecair?

A

B

C

D

Aqueous ammoniaAmmonia akueous

Ethanoic acid

Asid ethanoik

MethanolMetanol

WaterAir

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12 What is the meaning of heat of reaction?Apakah maksud haba tindak balas?

A The energy needed to break the chemical bondTenaga yang diperlukan untuk memecahkan ikatan kimia

B The energy needed to start a reactionTenaga yang diperlukan untuk memulakan tindak balas

C The energy involved when change of state of matter occurs

Tenaga yang dibebaskan apabila perubahan keadaan bahan berlaku

D The change in the energy contained in the products and in the reactantsPerubahan kandungan tenaga dalam hasil tindak balas dan bahan tindak balas

11 Diagram 1 shows the set up of apparatus for a chemical reaction.

Rajah 1 menunjukkan susunan radas bagi satu tindak balas kimia.

DIAGRAM 1RAJAH 1

Which of the following statements is true for the reaction?

Antara pernyataan berikut, yang manakah benar mengenai tindak balas itu?

A

B

C

D

Iron is reducedFerum diturunkan

Iron is an oxidising agentFerum adalah agen pengoksidaan

Magnesium releases electronMagnesium membebaskan elektron

The oxidation number of magnesium decreases

Nombor pengoksidaan magnesium berkurang

Magnesium strip

Kepingan magnesium

Agar solution

Larutan agar-agar

Iron strip

Kepingan ferum

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13 The body of an aeroplane is made up of alloy X.Badan sebuah kapalterbang dibina dari sejenis aloi X.

What is the alloy X?Apakah aloi X itu?

A

B

C

D

PewterPiuter

BrassLoyang

BronzeGangsa

DuraluminDuralumin

14 Which of the following is true about the charges of an electron, a neutron and a proton?Antara yang berikut, yang manakah benar tentang cas-cas bagi elektron, neutron dan proton?

A

B

C

D

Electron

Elektron

Neutron

Neutron

Proton

Proton

NegativeNegatif

PositivePositif

NeutralNeutral

PositivePositif

NeutralNeutral

NegativeNegatif

PositivePositif

NegativeNegatif

NeutralNeutral

NegativeNegatif NeutralNeutral PositivePositif

15 Which of the following pair of compounds and formulae is correct?Antara berikut, yang manakah pasangan sebatian dan fomulanya betul?

A

B

C

D

Compound Formula

Sebatian Formula

Sodium sulphate NaSO4

Natrium sulfat

Copper(II) oxide Cu2OKuprum(II) oksida

Iron(III) chloride FeCl3Ferum(III) klorida

Zinc nitrate Zn(NO2)3Zink nitrat

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16 Astatine is below iodine in Group 17 of Periodic Table.

Astatine terletak di bawah iodin dalam Kumpulan17 Jadual Berkala.

Which of the following statements is true for astatine?Antara pernyataan berikut, yang manakah benar tentang astatine?

A

B

C

D

Form basic oxideMembentuk oksida alkali

Exists as monoatomWujud sebagai monoatom

Solid at room temperature

Pepejal pada suhu bilik

More electronegativity than iodineLebih elektronegatif daripada iodin

17 The diagram 2 shows the electron arrangement of a molecule of water ,H2O

Rajah 2 menunjukkan susunan elektron bagi molekul air ,H2O

DIAGRAM 2RAJAH 2

Which of the following statements is true about the molecule?Antara pernyataan berikut, yang manakah benar tentang molekul itu ?

A

B

C

D

The compound has high melting pointSebatian mempunyai takat lebur yang tinggi

Oxygen atom ,O has four pairs of electrons to share

Atom oksigen, O mempunyai empat pasang elektron untuk di kongsi

The bonding between molecules of water, H2O is of Van der Waals forcesIkatan antara molekul air,H2Oialah daya Van der Waals

Each oxygen atom , O receives two electrons to form an oxide ionSetiap atom oksigen, O menerima dua elektron untuk membentuk satu ion oksida.

H O H

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18 The diagram 3 shows the set up of the apparatus of a simple chemical cell.The reading on the voltmeter is 0.5 V.

Rajah 3 menunjukkan satu radas bagi satu sel kimia yang ringkas.Bacaan pada voltmeter ialah 0.5 V.