Question

Select the option that will complete the homologous series given below.

${\text{C}}_2{\text{H}}_4$, ${\text{C}}_3{\text{H}}_6$, _______, ${\text{C}}_5{\text{H}}_{10}$, ${\text{C}}_6{\text{H}}_{12}$

• A. ${\text{C}}_4{\text{H}}_6$
• B. ${\text{C}}_4{\text{H}}_{10}$
• C. ${\text{C}}_4{\text{H}}_4$
• D. ${\text{C}}_4{\text{H}}_8$

Answer 1

The correct option is D ${\text{C}}_4{\text{H}}_8$

The homologous series given here is the alkene series. In a homologous series, every successive member differs by ${\text{CH}}_2$ group. So, the successive member after ${\text{C}}_3{\text{H}}_6$ in the given alkene homologous series is ${\text{C}}_4{\text{H}}_8$.