When a brown compound of manganese (A) is treated with HCl it gives a gas (B). The gas taken in excess, reacts with `NH_(3)` to give an explosive compound (C ). Identify compound A, B and C.

Options

A. `A = MnO_2, B = Cl_2, C = NCl_3`
B. `A = MnO, B =Cl_2 , C = NH_4Cl`
C. `A = Mn_3O_4, B = Cl_2, C = NCl_3`
D. `A = MnO_3, B = Cl_2 , C = NCl_2`

Answer

A

Explanation

`underset(A)(MnO_2) + 4HCl to MnCl_2 +2H_2O + underset(B)(Cl_2)`
`underset(excess)(3Cl_2) + NH_3 to underset( C)(NCl_2) + 3HCl`