Which of the following compounds will give a yellow precipitate with iodine and alkali?

Methyl acetate

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Acetamide

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2-Hydroxypropane

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Acetophenone

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Solution

The correct options are
C 2-Hydroxypropane
D Acetophenone
Haloform reaction,

$C H_{3} C O R$ is oxidized by $N a O I$ to form iodoform and $R C O_{2} N a$
wherein

$C_{6} H_{5} C O C H_{3} + N a O H + I_{2} \to C_{6} H_{5} C O_{2} N a + C H I_{3}$

Methyl acetate and Acetamide will not give a yellow precipitate.
But 2-Hydroxypropane and Acetophenone will give a yellow precipitate.

The correct option is C and D.

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