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Unit 2 Revision (Hydrocarbons)

Total questions: 17

Worksheet time: 9mins

Name
Class
Date
1.

What is a hydrocarbon?

a)

A compound which contains carbon only

b)

A compound which contains hydrogen and carbon only

c)

A compound which contains hydrogen, oxygen and carbon only

d)

A compound which contains hydrogen only

2.

What is a homologous series?

a)

A family of compounds that are made of hydrogen and carbon

b)

A family of compounds with the same chemical properties and different general structure

c)

A family of compounds with a different general formula and similar chemical properties

d)

A family of compounds with the same general formula and similar chemical properties

3.

What is meant by a saturated hydrocarbon?

a)

Contains at least one carbon to carbon double bond

b)

Contains only single covalent bonds between the carbon atoms

c)

Contains mostly single covalent bonds between the carbon atoms

d)

Contains a double covalent bond between the carbon atoms

4.

What is meant by an unsaturated hydrocarbon?

a)

Contain at least one carbon to carbon double bond or a carbon to carbon triple bond

b)

Contain only carbon to carbon double bonds

c)

Contain only carbon to carbon single bonds

d)

Contain at least two carbon to carbon double bond or a carbon to carbon triple bond

5.

What is used to test for saturation/ unsaturation?

a)

Bromine acid

b)

Potassium permanganate

c)

Iodine solution

d)

Bromine water

6.

What is an isomer?

a)

Compounds with different molecular formula and same structural formula

b)

Compounds with same molecular formula and same structural formula

c)

Compounds with same molecular formula and different structural formula

d)

Compounds with different molecular formula and different structural formula

7.

What name is given to the first group of cyclic hydrocarbons?

a)

cycloalkanes

b)

cyclicalkanes

c)

cyclocarbons

d)

cycloalkenes

8.

What is the molecular formula of a methyl functional group?

a)

CH2

b)

CH3

c)

C2H5

d)

CH5

9.

identify an isomer of but-2-ene

a)

cyclopropane

b)

but-3-ene

c)

butane

d)

but-1-ene

10.

What is the general formula of the alkanes?

a)

CnH2n

b)

CnH2n+1

c)

CnH2n+2

d)

CnH

11.

What is the general formula of the alkenes?

a)

CnH2n

b)

CnH2n+2

c)

CnH3n

d)

CH2n

12.

What name is given to the reaction when you add chlorine across a double bond?

a)

hydration

b)

addition

c)

hydrogenation

d)

polymerisation

13.

What product is formed when you react hydrogen with pent-3-ene?

a)

cyclopentane

b)

hex-3-ene

c)

pent-1-ene

d)

pentane

14.

What is the molecular formula of the functional group ethyl?

a)

C2H6

b)

CH2CH3

c)

CH5

d)

CH3

15.

2,2-dimethylpentane has how many carbon atoms present?

a)

4

b)

5

c)

6

d)

7

16.

Which of these hydrocarbons would react with bromine water?

a)

pentane

b)

cyclopropane

c)

ethene

d)

ethane

17.

2-ethyl, 3-methylhex-2-ene has how many carbon atoms?

a)

8

b)

7

c)

6

d)

5