Chapter 22, Problem 81A

Interpretation Introduction

Interpretation:

Saturated and unsaturated hydrocarbons need to be compared.

Concept introduction:

Compounds that contains only carbon and hydrogen atoms are said to be hydrocarbons. The hydrocarbons can be saturated or unsaturated on the basis of the type of bond present in them.

Explanation of Solution

If in a hydrocarbon compound, all the C-C bonds are single then they are said to be saturated hydrocarbon where as in an unsaturated hydrocarbon compound, there are double or triple bonds present. Compounds containing single bonds are called alkane, compounds containing double bonds are alkene and compounds containing triple bonds are said to be alkyne.

For example:

Since, the compound contains only single bonds so, it is an alkane (saturated hydrocarbon).

Since, the compound contains double bond between two carbon atoms so, it is an alkene (unsaturated hydrocarbon).

Since, the compound contains triple bond between two carbon atoms so, it is an alkyne (unsaturated hydrocarbon).