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B
3−bromoprop−1−yne
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C
2−butyne
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D
3,3,3−tribromoprop−1−yne
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Solution
The correct option is B3−bromoprop−1−yne The reaction of propyne with N-Bromosuccinimide(NBS) results in propargylic substitution and 3Bromoprop-1-yne forms.H−CH2−C≡C−HN−Bromosuccinimide→Br−CH2−C≡CH