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Question

The halogen atom in aryl halide is:

A
O-and p-directing
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B
m-directing
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C
o,m an p-directing
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D
O-and m-directing
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Solution

The correct option is A O-and p-directing
Haloarene or aryl halide is a chemical compound containing arenes, where one or more hydrogen atoms are bonded to the aromatic ring are replaced with halogens. They are generally denoted by “Ar-X” where 'X' denotes the halogen atom attached and 'Ar' stands for the aryl group.
The halide ions, which are electron-withdrawing but ortho, para directing, are the exception.
Halogen attached to a benzene ring is somewhat deactivating due to it's -I-effect, as a result it tends to withdraw the electrons from the benzene ring, making electrophilic substitution, ortho/ para directors are positively charged so halogens, being ortho/ para directors, are positively charged.

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