1.
Aniline in a set of reactions yielded a product 'd':\n\nceNH2−>[NaNO2/HCl]a−>[CuCN]b−>[H2/Ni]c−>[HNO2]d\\ce{NH2 ->[NaNO2/HCl] a ->[CuCN] b ->[H2/Ni] c ->[HNO2] d}\n\nThe structure of product 'd' would be