1.

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» 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`


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