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Addition of Halogen Cyanide

Ethylene is c...

Question

Ethylene is converted to X on passing through a mixture of an acidified aqueous solution of palladium chloride and cupric chloride. Which of the following reagents readily take part in addition reaction with X

A

B r_{2}

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B

HBr

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C

HCl

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D

HCN

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Solution

The correct option is D HCN
HCN produces the cyanide ion, which can form unnecessary addition products, and hence shouldnt be used.

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