MCQ
Which of the following is allylic halide?
- A(1-Bromoethyl) benzene
- BBenzyl chloride
- C1-Bromo benzene
- D3-Chloro cyclohex-1-ene
✓
Answer
- 3-Chloro cyclohex-1-ene
Explanation:
Allylic halides are the halides in which the halogen atom is bonded to sp3− hybridized carbon atom next to carbon-carbon double bond (C=C).
General chemical structure of allylic halides:
CH2=CH−CH2−X
Here, X is any halogen atom.
So, according to the rule, only in 3-chloro cyclohex-1-ene halide (Cl) is attached with sp3 carbon which is next to carbon-carbon double bond.
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