Which of the following on reaction with aqueous KOH gives acetaldehyde?

1, 2-Dicholoro ethane

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1, 1-Dicholro ethane

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Ethyl chloride

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Chloro acetic acid

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Solution

The correct option is B 1, 1-Dicholro ethane
$C H_{3} C H C l_{2} + a q . 2 K O H \to C H_{3} C H O + H_{2} O + 2 K C l$
(1, 1-Dicholro ethane) (Acetaldehyde)

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