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  4. Which one of the following is not expected to undergo iodoform reaction?

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Q. Which one of the following is not expected to undergo iodoform reaction?

KEAMKEAM 2014Alcohols Phenols and Ethers

Solution:

Compounds having methyl ketone $\left(- COCH _{3}\right)$ group or $2^{\circ}$ alcohol group

image

or ethanol when treated with iodine in the presence of alkali gives yellow coloured iodoform and this reaction is called iodoform test.

The structures of the given compounds are

image

Thus, among the given diphenyl methanol does not give iodoform reaction.