chemistry quiz chapter 5 form 4 @mohdnorihwan.blogspot.com

8/3/2019 chemistry quiz chapter 5 form 4 @mohdnorihwan.blogspot.com

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Arah Pendidikan Sdn Bhd 1 Chemistry SPM

Chapter 5 Chemical Bonds

Paper 1

Answer all the questions.

1 Which set of properties belong to sodium chloride?

Electrical Electrical Electrical

conductivity conductivity conductivity

of solid of molten of aqueous

compound compound solution of

compound

A Poor Poor Good

B Good Good Good

C Good Good Poor

D Poor Good Good

2 Which substance conducts electricity in both the molten and aqueous state?

A Ethanol

B Polyethene

C Mercury

D Sodium bromide

3 Which of the following atom would readily form an ion with a charge of 3?

Nucleon Proton

number number

A 12 6

B 16 8

C 24 12

D 31 15

4 Which of the following shows the electron arrangement of methane, CH4,molecule?

[ x = a valence electron of a C atom, = a valence electron of a H atom]

5 In which pair do the elements combine to form molecules?

A Carbon and hydrogen

B Sodium and oxygen

C Calcium and chlorine

D Potassium and chlorine

C

H

H

HH

x x

C

H

H

HH

x

x x

C

H

H

HH

x x

xx

x

xC

H

H

HH

x

x

x x

A C

B D


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6 A fluoride ion, F-, has the same number of electrons as

A an argon atom, Ar

B a bromine atom, Br

C a sodium ion, Na+

D a calcium ion, Ca2+

7 Which of the following conducts electricity by movement of ions?

A Molten aluminium oxide

B Molten naphthalene

C Ethanol

D Graphite

8 Element Phas an electron arrangement of 2.5.Element Q has an electron arrangement of

2.7. What is the chemical formula of the compound formed from Pand Q?

A PQ

B PQ3

C P3Q

D P5Q7

9 The elementsX,Yand Zhave consecutive increasing proton numbers. If element Yis a

noble gas, what will be the symbol for the ion of elementXand Z?

A X+, Z-

B X-, Z2-

C X+, Z2+

D X-, Z+

10 How many electrons does an aluminium ion has?

A 27

B 13C 10

D 8

11 How many pairs of shared electrons are there in a molecule of tetrachloromethane, CCl4?

A 1

B 2

C 3

D 4

12 Which of the following substances is an element that forms small molecules?

A Carbon dioxideB Copper

C Ice

D Iodine

13 The formation of an ionic compound is due to

A the transfer of electrons from metallic to non-metallic atoms

B the sharing of electrons between non-metallic atoms

C effect of heating

D the action of water on the compound when it dissolves


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14 Which of the particles does not have an octet structure?

A Calcium ion

B Chloride ion

C Lithium ion

D Argon atom

15 An ion R+ contains 39 particles in the nucleus. What is the composition of the nucleus of

atom R?

Number of Number of

protons neutrons

A 39 18

B 18 20

C 19 20

D 18 39

16 Substance Yhas a melting point higher than 800 C. It is insoluble in organic solvents. It

conducts electricity when molten but not in solid. What could Ybe?A Copper

B Aluminium oxide

C Polyethene

D Sulphur

17 Which of the following shows the electronic structure of calcium chloride?

[ = a valence electron from calcium; x = a valence electron from chlorine]

18 The figure below shows an electron arrangement (outermost shells only) of a molecule of

compoundXY2. What could be elementXand Y?

A Oxygen and sodium

B Chlorine and hydrogen

C Oxygen and hydrogenD Carbon and oxygen

A

B

C

x

xx

xx

xx

x

x x

x x

x x

Ca

xx

x x

x x

Ca

Ca2+

Cl

Cl

Cl+

Cl+

Ca2

CaCl

Cl Cl

xx

xx

x x

x x

xxx

x x

x x

xx

xxx

x x

x x

xx

xx x

x x

x x

D

x

x

x

xY YX


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19 The figure below shows an electron arrangement in a particle. The nucleus contains 12

protons and 12 neutrons.

Which of the following is true about the particle?

A It is a neutral atom

B It is a negative ion

C It is a positive ion

D It is a molecule

20 The number of protons, neutrons and electrons of ionXand ion Yis given in a table.

Ion

Number of

protons neutrons electrons

X 19 20 18

Y 19 22 18

Which statement aboutXand Yis correct?

A They are negative ions of different elements

B They are negative ions of the same element

C They are positive ions of the same element

D They are positive ions of different element

chemistry quiz chapter 5 form 4 @mohdnorihwan.blogspot.com

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