ANSWER AST HERE.....
Dear Student,
a) The white salt (B) will be Lead Nitrate Pb(NO3)2 , A NO2 and C is PbO.
The reddish-brown gas (A) evolved will be NO2 , is Nitrogen Dioxide gas.
b) On cooling residue become yellow powder of lead oxide (PbO).
(C) is lead oxide. (PbO)
(C) Type of reaction: Thermal decomposition.
The reaction involved in it will be:
2Pb(NO3)2 → 2PbO + 4NO2 + O2
Regards
a) The white salt (B) will be Lead Nitrate Pb(NO3)2 , A NO2 and C is PbO.
The reddish-brown gas (A) evolved will be NO2 , is Nitrogen Dioxide gas.
b) On cooling residue become yellow powder of lead oxide (PbO).
(C) is lead oxide. (PbO)
(C) Type of reaction: Thermal decomposition.
The reaction involved in it will be:
2Pb(NO3)2 → 2PbO + 4NO2 + O2
Regards