Assertion : Propene reacts with $\mathrm{HI}$ in presence of peroxide to give 1-iodopropane. Reason :…

Assertion : Propene reacts with $\mathrm{HI}$ in presence of peroxide to give 1-iodopropane. Reason : $1^{\circ}$ free radical is more stable than $2^{\circ}$ free radical.
  1. If both assertion and reason are true and reason is the correct explanation of assertion.
  2. If both assertion and reason are true but reason is not the correct explanation of assertion.
  3. If assertion is true but reason is false.
  4. If both assertion and reason are false.

Solution

Peroxide effect is not effective in the case of $\mathrm{HCl}$ and $\mathrm{HI}$. It is effective only in the case of $\mathrm{HBr}$.
$2^{\circ}$ free radical is more stable than $1^{\circ}$ free radical.

Asked in: NEET 2016 (Phase 1)

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