Question

NO2 can be prepared by heating :

• A. NH4NO3
• B. NaNO3
• C. Pb(NO3)2
• D. KNO3

Answer 1

Answer: (C)

Pb(NO3)2

Answer 2

2Pb (NO3)2 $\overset{\quad 673K\quad}{\rightarrow}$2PbO + 4NO2 + O2

NaNO3 and KNO3 gives their nitrites and O2 where as NH4NO3 gives N2O.