Question

Assertion : Iodination of alkanes is carried out in the presence of oxidising agents like $HIO_{3}$ or $HNO_{3}$.
Reason : Iodination of alkanes is an irreversible reaction.

• 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

Answer 1

Answer: (C)

lodination of alkanes is a reversible reaction and therefore it is carried out with oxidising agents like $HIO_{3}$ and $HNO_{3}$ which combine with $HI$ so that the reaction goes in forward direction.
$CH_{4}+I_{2} \rightleftharpoons CH_{3}I + HI, HIO_{3}+5HI \rightarrow 3I_{3}+3H_{2}O$
$A - X + 2Na + X - B \to A - A + B - B + A - B + B - A$