1.

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.

Answer»

If both assertion and RESON are true and reason is the correct explanation of assertion
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.

Solution :Iodination 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) HARR CH_(3)I +HI,HIO_(3)+5HI to 3I_(2)+3H_(2)O`
`A-X+2Na+X-B to A-A+B-B+A-B+B-A`


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