Question

Which of the following is an unsaturated compound?

• A. ${\mathrm{C}}_6{\mathrm{H}}_{14}$
• B. ${\mathrm{C}}_4{\mathrm{H}}_8$
• C. ${\mathrm{C}}_3{\mathrm{H}}_7\mathrm{OH}$
• D. ${\mathrm{CH}}_3\mathrm{OH}$

Answer 1

The correct option is B

${\mathrm{C}}_4{\mathrm{H}}_8$

Explanation for the correct option:

Unsaturated compounds are those in which there is at least one double or triple bond present.

(B) Butene (${\mathrm{C}}_4{\mathrm{H}}_8$): The structural formula of Butene is given below:

There is a double present in Butene, therefore it is an unsaturated compound.

Explanation for the incorrect options:

(A) Hexane (${\mathrm{C}}_6{\mathrm{H}}_{14}$): The structural formula of Hexane is given below:

All the bonds in Hexane are single bonds, hence it is a saturated compound.

(C) Propanol (${\mathrm{C}}_3{\mathrm{H}}_7\mathrm{OH}$): The structural formula of Propanol is given below:

All the bonds in Propanol are single bonds, hence it is a saturated compound.

(D) Methanol (${\mathrm{CH}}_3\mathrm{OH}$): The structural formula of Methanol is given below:

All the bonds in Methanol are single bonds, hence it is a saturated compound.

Therefore, the correct option is (B).