In the reaction sequence
`CH -= CH + CH -=CH overset(Cu_2Cl_2)(rarr)(A), 'B' overset(HCl)(rarr)(B)`
Will be

In the reaction sequence CH_3-CH_2-CH_2-Broverset(AgCN) rarr (X) overset (H_2O/ H^(+))rarr(Y) (Y) will be

In the reaction sequence CH_3-CH_2-CH_2-Broverset(AgCN) rarr (X) overset (H_2O/ H^(+))rarr(Y) (Y) will be

Identify A and B CH_2=CH_2 overset(HBr)rarr A overset([H])rarr B

Identify A and B CH_3CH=CH_2 overset(O_3)rarr(A)overset(zn//H_2O)rarr(B)

Identify 'A' and 'B' in the following reaction : CH_(3)-CH=CH_(2) overset(HBr)(rarr) 'A' overset("alc. KOH")(rarr) 'B'