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Question

When a mixture of carbon monoxide and chlorine is exposed to sunlight the product formed is:

A

carbon tetrachloride

B

phosgene

C

phosphine

D

carbon chloride

Medium

Solution

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Correct option is
B

phosgene

Industrially phosgene is produced by passing CO and chlorine gas through a bed of porous activated carbon as catalyst. Naturally phosgene is produced in the presence of ultraviolet rays and oxygen chloroform converts to phosgene by radical reaction.

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