Free Printable May 1 year IGCSE Entrance Test Chemistry

1.

What is the term used for a salt which is formed by the complete neutralization of an acid?

a)

(a) basic salt

b)

(b) common salt

c)

(c) acid salt

d)

(d) normal salt

2.

Partial neutralization of Carbonic acid forms

a)

(a) carbon dioxide

b)

(b) hydrogen carbonate

c)

(c) carbonate

d)

(d) carbon monoxide

3.

Complete neutralization of Carbonic acid forms

a)

(a) carbon dioxide

b)

(b) hydrogen carbonate

c)

(c) carbonate

d)

(d) carbon monoxide

4.

What is the term used for a salt which is formed by partial neutralization of an acid?

a)

(a) basic salt

b)

(d) common salt

c)

(c) acid salt

d)

(d) normal salt

5.

Solvents used for cleaning electronic circuit boards are

a)

(a) chlorofluoro

carbons

b)

(b) carbons

c)

(c) fluorides

d)

(d) grease

6.

The pH of acid rain is

a)

(a) more than 5.6

b)

(b) less than 5.6

c)

(c) 10

d)

(d) 7

7.

Ozone gas (O₃) has

a)

(a) unpleasant odor

b)

(b) pleasant odor

c)

(c) no odor

d)

(d) orange color

8.

The upset caused in the natural balance of concentration of greenhouse gases is called

a)

(a) pollution

b)

(b) global warming

c)

(c) atmospheric poisoning

d)

(d) earth heating

9.

The compound which is responsible for acid rain is

a)

(a) sulfur

b)

(b) sulfur dioxide

c)

(c) sulfur trioxide

d)

(d) nitrogen

10.

Which of the following is produced when electrical discharges pass through oxygen in the air?

a)

(a) chlorofluorocarbons

b)

(b) methane

c)

(c) ozone

d)

(d) lead compounds

11.

How much higher can be the temperature inside a greenhouse as compared to the outside?

a)

(a) 20 °C higher

b)

(b) 10 °C to 15 °C higher

c)

(c) 5 °C higher

d)

(d) 25 °C higher

12.

If silk clothes are left in the open air for a week or so, their color fades because of

a)

(a) sulphur dioxide is converted into sulphur trioxide

b)

(b) dirt

c)

(c) carbon monoxide

d)

(d) nitrogen oxides

13.

Which of the following is a powerful irritant which can aggravate the symptoms of people who suffer from respiratory disorders?

a)

(a) sulphur dioxide

b)

(b) carbon monoxide

c)

(c) carbon dioxide

d)

(d) oxides of nitrogen

14.

Which two main gases are produced when you burn a piece of wood?

a)

(a) oxygen and nitrogen

b)

(b) carbon dioxide and oxygen

c)

(c) carbon dioxide and carbon monoxide

d)

(d) carbon dioxide and nitrogen

15.

Alcohols (C_nH_2n+1OH) are formed by the attachment of

a)

(a) OH group to hydrocarbon chain

b)

(b) HX group to hydrocarbon chain

c)

(c) O to hydrocarbon chain

d)

(d) H to hydrocarbon chain

16.

Fats and oils are esters of fatty acids with trihydroxy alcohol called

a)

(a) ethanol

b)

(b) methanol

c)

(c) glycerol

d)

(d) propanol

17.

The general formula for alcohols is

a)

(a) R-OH

b)

(b) R-O-R

c)

(c) R-COOH

d)

(d) R-NH2

18.

What is the physical state of the first four alkanes?

a)

(a) solid

b)

(b) liquid

c)

(c) gas

d)

(d) plasma

19.

Chloroform is also called

a)

(a) chloromethane

b)

(b) dichloromethane

c)

(c) Trichloromethane

d)

(d) tetra chloromethane

20.

What is the term used for the reaction of a substance with oxygen or air that causes the rapid release of heat and the appearance of a flame?

a)

(a) oxidation

b)

(b) combustion

c)

(c) burning

d)

(d) reduction

21.

Which of the following is used as an anesthetic?

a)

(a) dichloromethane

b)

(b) tetra chloromethane

c)

(c) methyl chloride

d)

(d) chloroform

22.

Minimum temperature of the troposphere is

a)

(a) 17 °C

b)

(b) −55 °C

c)

(c) −5 °C

d)

(d) 1800 °C

23.

The thermosphere is divided into how many layers?

a)

(a) two

b)

(b) three

c)

(c) four

d)

(d) five

24.

The energy of sunlight is converted into heat by

a)

(a) oxygen only

b)

(b) nitrogen only

c)

(c) hydrogen

d)

(d) oxygen and nitrogen

25.

Brilliant light displays called aurora borealis occur in

a)

(a) troposphere

b)

(b) stratosphere

c)

(c) exosphere

d)

(d) ionosphere

26.

What is the extension of the exosphere above the surface of Earth?

a)

(a) 80 km to 400 km

b)

(b) 0 km to 12 km

c)

(c) 400 km to thousands of kilometer

d)

(d) none of above

27.

When an acid reacts with metal carbonate, the products are

a)

(a) salt

b)

(b) water

c)

(c) carbon dioxide

d)

(d) all of above

28.

Preservatives are used to preserve

a)

(a) food

b)

(b) acids

c)

(c) bases

d)

(d) water

29.

The process in which acids (H⁺) and bases (OH^-) react to form salts and water is called

a)

(a) neutralization

b)

(b) hydrogenation

c)

(c) halogenation

d)

(d) sublimation

30.

When a metal replaces hydrogen atom then the compound form is

a)

(a) oxide

b)

(b) ether

c)

(c) salt

d)

(d) alcohol

31.

The salt among the following is

a)

(a) HCl

b)

(b) KCl

c)

(c) HNO₃

d)

(d) H₃₄

32.

How much hydrochloric acid is secreted each day by gastric glands?

a)

(a) 1 liter

b)

(b) two liters

c)

(c) three liters

d)

(d) four liters

33.

IUPAC names are also called

a)

(a) systematic names

b)

(b) hydrocarbon names

c)

(c) scientific names

d)

(d) class names

34.

What is the pH of bleach?

a)

(a) 3

b)

(b) 4

c)

(c) 13

d)

(d) 14

35.

What is the pH of the drain cleaner?

a)

(a) 1

b)

(b) 2

c)

(c) 12

d)

(d) 14

36.

What is the optimum pH range of a swimming pool?

a)

(a) 6.2-6.6

b)

(b) 7.2-7.6

c)

(c) 7

d)

(d) 8.2-8.6

37.

When an acid reacts with metal carbonate, the products are

a)

(a) salt

b)

(b) water

c)

(c) carbon dioxide

d)

(d) all of above

38.

Preservatives are used to preserve

a)

(a) food

b)

(b) acids

c)

(c) bases

d)

(d) water

39.

The process in which acids (H⁺) and bases (OH^-) react to form salts and water is called

a)

(a) neutralization

b)

(b) hydrogenation

c)

(c) halogenation

d)

(d) sublimation

40.

When a metal replaces hydrogen atom then the compound form is

a)

(a) oxide

b)

(b) ether

c)

(c) salt

d)

(d) alcohol

41.

The salt among the following is

a)

(a) HCl

b)

(b) KCl

c)

(c) HNO₃

d)

(d) H₃₄

42.

What is the representation of a reversible reaction?

a)

(a) single arrow

b)

(b) double arrows

c)

(c) bar

d)

(d) none of above

43.

Due to the high concentration of reactants, the rate of the forward reaction is

a)

(a) lowest

b)

(b) moderate

c)

(c) highest

d)

(d) minimal

44.

In the reverse reaction SO₃ decomposes in to

a)

(a) S and O

b)

(b) S and O₂

c)

(c) S₂ and O

d)

(d) SO₂ and O₂

45.

The state at which forward and reverse reactions occur at the same rate is

a)

(a) equilibrium

b)

(b) unstable equilibrium

c)

(c) not in equilibrium

d)

(d) neutral equilibrium

46.

What is established when the rate of evaporation equals the rate of condensation?

a)

(a) equality

b)

(b) equilibrium

c)

(c) reversible reaction

d)

(d) irreversible reaction

47.

Property due to which water acts as a universal solvent is its

a)

(a) polarity only

b)

(b) ability to make hydrogen bond only

c)

(c) strong dipole dipole interaction

d)

(d) polarity and ability to make hydrogen bond

48.

Natural water is

a)

(a) pure

b)

(b) impure

c)

(c) non distilled

d)

(d) distilled

49.

During thunderstorms, water dissolves

a)

(a) dust particles

b)

(b) HCl

c)

(c) nitric acid

d)

(d) clouds

50.

What is the first step of raw water treatment?

a)

(a) sedimentation

b)

(b) coagulation

c)

(c) filtration

d)

(d) chlorination

May 1 year IGCSE Entrance Test Chemistry

Total questions: 50

Worksheet time: 50mins

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