Question

The stability order of alkene in following compounds is :

(I) (II) (III) (IV)

• A. I < II < III < IV
• B. II < I < III < IV
• C. II < III < I < IV
• D. II < IV < I < III

Answer 1

Answer: (A)

I < II < III < IV

Answer 2

Stability of alkene $\propto$conjugation and No. of hyperconjugative a–H atom.