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A dihalogen derivative X of a hydrocarbo...

A dihalogen derivative X of a hydrocarbon witn three carbon atom react with alocholic `KOH` and produces another hydrocarbon which forms a red precipitate with ammoniacal `Cu_2 Cl_2 * X` gives 'an aldehyde on reaction with aqueous KOH. The compound `X` is

A

1, 3- dichloropropane

B

1, 2 - Dichloropropane

C

2, 2 -Dichoropropane

D

1, 3 Dichoropropene

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The correct Answer is:
D
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