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Question

Question: The major product obtained when, chlorobenzene is reacted with chlorine in the presence of $FeCl_3$...

The major product obtained when, chlorobenzene is reacted with chlorine in the presence of FeCl3FeCl_3

A

1, 2-dichlorobenzene

B

1, 3-dichlorobenzene

C

1, 4-dichlorobenzene

D

1, 2, 4-trichlorobenzene.

Answer

1,4-dichlorobenzene

Explanation

Solution

Chlorobenzene, with a deactivating -Cl group (an ortho/para director), when reacted with chlorine/FeCl3FeCl_3 undergoes electrophilic aromatic substitution. Due to steric hindrance at the ortho positions, the para product is favored.