Assertion : The major products formed by heating $\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_2 \mathrm{OCH}_3$ with $\mathrm{HI}$ are $\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_2 \mathrm{I}$ and $\mathrm{CH}_3 \mathrm{OH}$. Reason : Benzyl cation is more stable than methyl cation.

• Correct answer
  A

  If both assertion and reason are true and reason is the correct explanation of assertion
• B

  If both assertion and reason are true but reason is not the correct explanation of assertion
• C

  If assertion is true but reason is false
• D

  If both assertion and reason are false.

Solution

This can be explained on the basis of $\mathrm{S}_{\mathrm{N}} 1$ mechanism, the carbonium ion produced being benzylium ion, since this type is more stable than alkylium ion.

Hence, the correct answer is option: 'A'.