Which of the following reagent cannot be used for differentiation between $C H_{3} C H O$ and $C H_{3} C O - P h$ ?

N a O I

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Tollen's reagent

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H_{2} N - O H

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P h - N H - N H_{2}

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Solution

The correct option is D Tollen's reagent
Ans : B
${C H}_{3} C H O$ being an aldehyde gives a positive test for Tollen's test.
Ketones do not react with Tollen's reagent. Hence ${C H}_{3} - C ∥ - P h$ do not react with Tollen's reagent.
$O$

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