MCQ
Arrange the following according to the increasing order of stability :- Propene $(I)$, cis but $-2-$ ene $(II)$, trans-but $-2-$ ene $(III)$, $2,3-$ dimethylbut $-2-$ ene $(IV)$, ethene $(V)$
  • A
    $V < IV < III < II < I$
  • $V < I < II < III < IV$
  • C
    $V < IV < III < I < I$
  • D
    $IV < III < II < I < V$

Answer

Correct option: B.
$V < I < II < III < IV$
b
Stability $\alpha$ No. of $\alpha-\mathrm{H}$ atoms trans but$-2-$ene is more stable than cis but$- 2 -$ene due to less steric hindrance

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free