When lead nitrate is heated it produces :
NO2
NO
N2O5
N2O
A.
NO2
Lead nitrate on heating gives lead oxide , nitrogen di-oxide with evolution of O2 gas .
2Pb(NO3)2 2PbO + 4NO2 + O2
If hydrogen electrode dipped in two-solution of pH = 3 and pH = 6 and salt bridge is connected , the emf of resulting cell is :
0.177 V
0.3 V
0.052 V
0.104 V