Question

The compound having only primary hydrogen atoms is

• A. isobutene
• B. 2,3 - dimethylbutene - 1
• C. cyclohexane
• D. propyne

Answer 1

Answer: (A)

isobutene

Answer 2

Given compounds are represented as follows $11\,p - H$ atoms, $1\, t - H$ atom $\underset{\text{Propane}}{\overset{p}{H_3}C - C\overset{s}{H_2} - \overset{p}{C}H_2}$ $6\,p - H$ atoms and $2 - s - H$ atoms