A solid metal ‘A’ reacts with nitrogen in red hot condition to produce a greenish yellow powder ‘B’ . When ‘B’ is boiled in water a pungent smelling gas ‘C’ is formed. Identify A ,B ,C and write the necessary reactions.

A solid metal ‘A’ reacts with nitrogen in red hot condition to pro

1.	A solid metal ‘A’ reacts with nitrogen in red hot condition to produce a greenish yellow powder ‘B’ . When ‘B’ is boiled in water a pungent smelling gas ‘C’ is formed. Identify A ,B ,C and write the necessary reactions.
Answer» The metal nitrate (A) is lead nitrate (PB(NO 3 ) 2 ) on HEATING it produces lead oxide, Nitrogen dioxide (B) and oxygen GAS (C)(1) 2Pb(NO 3 ) 2 →2PbO+4NO 2 +O 2 on reaction with potassium iodide mixture of lead iodide and potassium nitrate forms(2) Pb(NO 3 ) 2 +2KI→PbO 2 +2kNO 3 ALLOY made of using lead is used in Soldering purpose.Therefore A=[Pb(NO 3 ) 2 ),B=NO 2 C=O 2 D=PbI+KNO 3 (2) Decompostion type Reaction(2) Double displacement type Reaction.