Question

Compound $X$ on reaction with $O_3$ followed by $Zn/H_{2}O$ gives formaldehyde and $2-$methyl propanal as products. The compound $X$ is

• A. $3-\text{Methylbut}-1-\text{ene}$
• B. $2-\text{Methylbut}-1-\text{ene}$
• C. $\text{Pent}-2-\text{ene}$
• D. $2-\text{Methylbut}-2-\text{ene}$

Answer 1

The correct option is A $3-\text{Methylbut}-1-\text{ene}$


Whenever the products of oznolysis contains formaldehyde as one of the products then the alkene from which it is derived must've been a terminal alkene.