Question

Assertion : Iodination of alkanes is reversible.
Reason : Iodination is carried out in presence of iodic acid.

• A. If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
• B. If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
• C. If the Assertion is correct but Reason is incorrect.
• D. If the Assertion is incorrect and Reason is correct._

Answer 1

Answer: (B)

Iodination is reversible since formed $HI$ is a strong reducing agent and reduces the alkyl iodide back to alkane.
$CH _4+ I _2 \rightleftharpoons CH _3 I + HI$
Iodination can be done only in presence of strong oxidising agents like iodic acid which destroys the hydriodic acid.