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

Options

A. Propan-2-o1
B. 1-phenylethanol
C. 2-butanol
D. Ethanol

Answer

D

Explanation

Compounds having methyl ketone `( -COCH_(3))`
group or `2 ^(@)` alcohol group `(CH _(3) - underset(OH) underset(|) (CH)-) or ` ethanol when treated with lodine in the presence of alkali gives yellow coloured iodoform and this reaction si called iodoform test.
The strectures of the given compounnds are

(e) `underset("diphenyl methanol") ( C _(6) H _(5) underset( C _(6) H _(5)) underset( |) ( -CH) - OH)`
`underset ("so,it can not give iodoform test") (No CH _(3) - underset(OH) underset(|) (CH) -"group")`
Tus, amoung the given diphenyl methanol does not give iodoform reaction.