Question

In the redox reaction
`xMnO+yPbO_(2)+zHNO_(3) rarr HMnO_(4)+Pb(NO_(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

Correct Answer - A
The balanced chemical equation is
`underset(x)underset(uarr)(2MnO)+underset(y)underset(uarr)(5PbO_(2))+underset(z)underset(uarr)(10HNO_(3)) rarr 2HMnO_(4)+5Pb(NO_(3))_(2)+4H_(2)O`