Which group can be completely displaced by a halogen group?
Hydroxyl group(OH)
Aldehyde (−CHO) group
Nitro (−NO2) group
Keto (C=O) group
A
Keto (C=O) group
B
Nitro (−NO2) group
C
Hydroxyl group(OH)
D
Aldehyde (−CHO) group
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Solution
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Hydroxyl group (-OH) present in an alcohol or an acid can be completely displaced by a halogen atom. 2C2H5OH+PCl3→2C2H5Cl+H3PCl3
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