Question

an alkene 'A' of molcular mass 28u on treatment with bromine gives a product 'B' The compound 'B'on further Dehalogenation with zinc gives back A​

Answer 1

Answer:

Reaction with Zn

CH

2

​

Br−CH

2

​

Br+Zn→CH

2

​

=CH

2

​

+ZnBr

2

​

Reaction with alc. KOH

Br−H

2

​

C−CH

2

​

−Br

AlcoholicKOH

​

1,2−dibromo ethane(vic−dihalide)

H

2

​

C=CH−Br

NaNH

2

​

​

CH≡CH+NaBr+NH

3

​

Explanation: