On heating lead nitrate forms oxides of nitrogen and lead. The oxides formed are-
1. N2O, PbO 
2. NO2, PbO 
3. NO, PbO 
4. NO, PbO2


 

 



Hint: One of the products is nitrogen dioxide

On heating lead nitrate it produces brown-colored nitrogen dioxide NO2 and lead (II) oxide.

2
PbNO32  4NO2 + 2PbO + O2