1.

In the following reactions, reactants A, B and C are: C_2H_5NH_2 + A to C_2H_5N = CN - C_6H_5 + H_2O "Urea" + B to H_2N - NHCONH_2 + NH_3 C_2H_5 NH_2 + C to C_2H_5Cl+H_2O+N_2

Answer»

`CH_3CHO,NH_2 - NH_2 and PCl_5`
`C_6H_5CHO,NH_2-NH_2and SOCl_2`
`C_6H_5CHO,NH_2-NH_2and NOCL`
`CH_3CHO,NH_2-NH_2 and PCl_3`

ANSWER :C


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