Q. 123.8( 6 Votes )

The position of – A. Allyl

B. Aryl

C. Vinyl

D. Secondary

Answer :

Allyl halides occur when the halogen atom is bonded to an sp3-hybridised carbon atom adjacent to an allylic carbon, that is, a carbon-carbon double bond.


Aryl halides are formed when the halogen atom is bonded directly to the sp2-hybridised carbon atom of an aromatic ring.


Vinylic bonds are formed when the halogen atom is bonded to an sp2-hybridised carbon atom of a carbon-carbon double bond. Simply put, it is the ethylene molecule with one of the hydrogen atoms replaced by another –R group.


Secondary bonds occur when the halogen is bound to a secondary carbon atom in the molecule. In the given molecule, the –Br is attached to a tertiary carbon atom which is in turn attached an sp3-hybridised carbon-carbon double bond. Hence this –Br is in an allylic position. Option (i) is correct.

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