Question

An alkene 'A' of molecular mass "28u'on treatment with
bromine gives a product 'B'. The Compound 'B' on further
dehalogenation with zinc gives back Al Give the structures
of 'A' and 'B' and also the sequence of reactions.​

Answer 1

Answer:

A:ethene

B:1,2dibromoethane

Explanation:

molecular mass=28 u( 2carbon=24 ,4 H= 4)

ethene gives 1,2dibromoethane on reaction with Br ( sunlight) which on further reaction with zinc reduces to form ethene