Chem – Chapter 11: Hydrocarbons

1

Which product is formed when methane undergoes complete combustion?

A Carbon monoxide and water B Carbon dioxide and water C Carbon and hydrogen D Only carbon dioxide

2

Which of the following is the simplest alkane?

A Ethane B Propane C Methane D Butane

3

Which of the following is the IUPAC name of CH3-CH2-CH3?

A Methane B Ethane C Propane D Butane

4

Which process is used to break down large hydrocarbons into smaller ones?

A Fractional distillation B Cracking C Halogenation D Combustion

5

The IUPAC name of CH3-CH3 is:

A Methane B Ethane C Propane D Ethene

6

Which gas is produced when alkanes burn completely in oxygen?

A Carbon monoxide B Carbon dioxide C Hydrogen D Nitrogen

7

Which of the following is not a use of alkanes?

A Fuel B Lubricant C Preparation of polymers D As a solvent

8

Halogenation of alkanes is an example of:

A Addition reaction B Substitution reaction C Elimination reaction D Oxidation reaction

9

What is the IUPAC name of the compound CH3-CH2-CH3?

A Ethane B Propane C Butane D Methane

10

Natural gas mainly consists of:

A Methane B Ethane C Propane D Butane

11

Which of the following is NOT a source of hydrocarbons?

A Coal B Petroleum C Natural gas D Water

12

Alkanes are also called:

A Saturated hydrocarbons B Unsaturated hydrocarbons C Aromatic hydrocarbons D Cyclic hydrocarbons

13

Alkenes are more reactive than alkanes because they contain:

A A double bond B Only single bonds C A triple bond D An aromatic ring

14

Which of the following is a use of alkanes?

A Fuel B Solvent C Lubricant D All of these

15

Alkenes contain at least one:

A Single bond B Double bond C Triple bond D Ionic bond

16

Which of the following is a major source of hydrocarbons?

A Coal B Petroleum C Natural gas D All of these

17

Which of the following is NOT a use of hydrocarbons?

A Fuel B Lubricant C Medicine D Photosynthesis

18

Which type of reaction is characteristic of alkanes?

A Addition B Substitution C Elimination D Polymerization

19

Which of the following is a source of hydrocarbons?

A Coal B Petroleum C Natural gas D All of these

20

Which of the following is the correct IUPAC name of CH3-CH2-CH2-CH3?

A Propane B Butane C Pentane D Hexane

21

Alkanes are also known as:

A Saturated hydrocarbons B Unsaturated hydrocarbons C Aromatic hydrocarbons D Cyclic hydrocarbons

22

Which of the following is a saturated hydrocarbon?

A Ethene B Ethyne C Ethane D Benzene

23

The reaction of alkanes with halogens in the presence of sunlight is an example of:

A Addition reaction B Substitution reaction C Elimination reaction D Polymerization reaction

24

In the IUPAC name of an alkane, what does the prefix 'iso-' indicate?

A A straight chain B A branched chain with a methyl group on the second carbon C A double bond D A ring structure

25

Which of the following is a use of methane?

A Cooking fuel B Making glass C Making paper D Making cement