Saturated and Unsaturated Hydrocarbons

Q. (a) What are hydrocarbons? Give examples.
(b) Give the structural difference between saturated and unsaturated hydrocarbons. [2 Marks]

Q. Compounds with single bond are stable than those with double or triple bonds.

1. True
2. False

Q.

The number of hydrogen atoms present in the following compound are:

1. 13
2. 10
3. 14
4. 2

Q.

Open-chain saturated hydrocarbons are called

1. Alkenes

2. Paraffins

3. Alkynes

4. Alkyl groups

Q.

Which of the following will not decolourise bromine water?

1. 

2. 

3. 

4. 

Q.

Which of the following represent the correct increasing order of unsaturation?

1. Alkanes < Alkenes < Alkynes

2. Alkanes < Alkynes < Alkenes

3. Alkenes < Alkynes < Alkenes

4. Alkynes < Alkanes < Alkenes

Q.

Which of the following is not a saturated hydrocarbon?

1. Benzene

2. Butane

3. Cyclopentane

4. Cyclohexane

Q.

Which bond is formed between carbons in ethene?

1. A double bond and a single bond

2. Single bond

3. Double bond

4. Triple bond

Q.

Open-chain saturated hydrocarbons are called

1. Paraffins

2. Alkynes

3. Alkyl groups

4. Alkenes

Q.

Which of the following are molecular formula of hexene and hexyne respectively?

1. $C_6{H}_{12}$ , $C_6{H}_{10}$

2. $C_6{H}_{10}$ , $C_6{H}_{12}$

3. $C_6{H}_{12}$ , $C_6{H}_{14}$

4. $C_6{H}_{18}$ , $C_6{H}_4$