`Mgoverset(N_(2)triangle)to Y overset(H_(2)O)to Z ("colourless gas")overset(CuSO_(4))to T` (blue colour)
Then , substances Y and T are

Options

A. `Y= Mg_(3)N_(2) and T= CuSO_(4). 5H_(2)O`
B. `Y= Mg_(3)N_(2) and T= CuSO_(4).4NH_(3)`
C. `Y= Mg(NO_(3))_(2) and T= 2CuCO_(3).Cu(OH)_(2)`
D. `Y= MgO and T= CuSO_(4).4NH_(3)`

Answer

B

Explanation

Mg with nitrogen form `Mg_3N_2` which on hydrolysis forms `NH_3 CuSO_4` with `NH_3` forms `NH_3. CuSO_4.4NH_3`