Question

In the redox reaction

xMnO +y$Pb{O}_2$+z$HN{O}_3$$⟶$$HMn{O}_4$ +$Pb(N{O}_3{)}_2$ +$H_{2}O$

• A. X = 2,Y =5, Z= 10
• B. x =2, y = 7, z=8
• C. x= 2, y =5 , z=8
• D. x=2, y =5 , z=5

Answer 1

The correct option is A

X = 2,Y =5, Z= 10

3$H_{2}O$+MnO$⟶$$[Mn{O}_4{]}^{-}$$6H^{+}$ +$5e^{-}$ $⟶$(1)$\times$2

$2^{-}$+$4H^{+}$+$Pb{O}_2$ $⟶$ $P{b}^{+}2$+$2H_{2}O$ $⟶$ (11)$\times$5

2MnO+5$Pb{O}_2$+$g{H}^{+}$ $⟶$ $2Mn{O}_4^{-}$+ $5P{b}^{+}2$+4$H_{2}O$

2MnO +5$Pb{O}_2$+10$HN{O}_3$ $⟶$2 $HMn{O}_4$+ 5$Pb(N{O}_3{)}_2$+$4H_{2}O$