question_answer

In the reactions\[B\xrightarrow{\text{Lindlar}\,\text{catalyst + }{{\text{H}}_{\text{2}}}\text{O}}RC\equiv CR\xrightarrow{\text{Na/N}{{\text{H}}_{\text{3}}}}A\]A and B are geometrical isomers. Then

A)  A is \[cis\] and B is trans

B)  A is trans and B is c is

C)  A and B are c is

D)  A and B are trans

Correct Answer: B

Solution :