Question

The total number of isomers having the molecular formula $C_4{H}_8$ is:

• A. 2
• B. 3
• C. 6
• D. 4

Answer 1

Answer: (C)

6

The degree of unsaturation of $C_4{H}_8$ is $1$,

so the structure can have $1$ double bond in chain and one ring.