1A-Pb3O4
B-PbO2
C-PbI2
D-HMn04
Pb3O4 + 4HNO3 ----> 2Pb(NO3)2 + PbO2(choc brown) + 2H2O
PbO2 + 2NaOH ----> Na2PbO3 + H2O
Na2PbO3 + 2KI ----> PbI2(yellow) +.....
Mn(NO3)2 + PbO2 + HNO3 ---> HMnO4(pink) + Pb(NO3)2 + H2O... plz balance it
A scarlet compound A is treated with conc. HNO3 to give a chocolate brown ppt. B . the ppt. is filtered and the filtrate is neutralized with NaOH . Addition of KI to the resulting soln. gives a yellow ppt. C . The brown ppt. B on warming with conc. HNO3 in presence of Mn(NO3)2 produces a pink coloured soln. due to the formation of D. identify A , B , C and D. Write the reacn. sequence.
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