A red-brown gas is released along with O2 and lead oxide on heating lead nitrate, it is an example of

(a) Comnbinatio reaction

(b) Oxidation reaction 

(c) Decomposition reaction

(d) Reduction reaction

Correct answer  - (c)

Explanation 

When lead nitrate is heated, it breaks down into lead oxide, nitrogen dioxide, and oxygen, so it is a decomposition reaction 

   

 `2Pb(NO_3)_2 \to 2PbO + 4NO2_{(g)} + O2_{(g)}`