Question

2-Butene Is reacted with hbr
Major products of above reaction will be :-
(1) 1
(3) 4
(4) 3
(2) 2

Answer 1

Explanation:

when 2- butene is reacted with hbr , major products are 4

Answer 2

2-Butene Is reacted with HBr,

Major products of above reaction will be :-

CH3 - CH = CH - CH3 + HBr ==>

CH3 - CHBr - CH2 - CH3 +

CH3 - CH2 - CHBr - CH3

• Now both products formed by hydrobromination of 2- Butene are same in structure i.e 2-bromo- Butane

• Therefore,

When 2-Butene reacts with HBr, it gives 2-bromo-Butane as major product

And Number of major product is one

• Hence, option (1) is correct