Addition of HBr to which alkene gives only one type of product
CH3−CH=CH−CH3
CH3−CH=CH2
Both b & c
Symmetrical alkene gives one product
An alkybromide(A) On treatment with Na and ether gives a hydrocarbon (B). (B) on treatment with HBr and peroxide gives Br−(CH2)6−Br compound (A) is