On heating Mn(OH)2 with PbO2 and conc. HNO3 pink colour is obtained due to the formation of

Question

On heating Mn(OH)2 with PbO2 and conc. HNO3 pink colour is obtained due to the formation of (A)  KMnO4  (B)  HMnO4  (C)  Pb(MnO4)2  (D)  PbMnO4

Tardigrade Admin · Accepted Answer

On boiling red lead or lead dioxide with conc.

H N O_{3}

, they form per manganic acid due to which a deep pink colour is developed.

2 M n^{2 +} + 5 P b O_{2} + 4 H^{+} \to 2 M n O_{4}^{-}

+ 5 P b^{2 +} + 2 H_{2} < b r / > O

2 M n C l_{2} + 3 H_{2} O + 5 O \to 2 H M n O_{4} + 4 H Cl

Q. On heating $M n (O H)_{2}$ with $P b O_{2}$ and conc. $H N O_{3}$ pink colour is obtained due to the formation of