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

Options

A. `A = MnO_(2), B = Cl_(2), C = NCl_(3)`
B. `A = MnO, B = Cl_(2), C = NH_(4)Cl`
C. `A = Mn_(3)O_(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 rarr MnCl_(2) + underset((B))(Cl_(2))+2H_(2)O),(" "NH_(3) + 3 underset((B))(Cl_(2))rarr underset((C))(NCl_(3)) + 3 HCl):}`