Consider the following reaction
`x MnO_(4)^(-) + C_(2)O_(4)^(2-) + zH^(+) rarr x Mn^(2+) + 2y CO_(2) + (z)/(2)H_(2)O`
The value of x, y and z in the reaction are respectively

Options

A. 2, 5 and 8
B. 2, 5 and 16
C. 5,2 and 8
D. 5,2 and 16

Explanation

`overset((+7))(MnO_(4)^(-))rarroverset((+2))(Mn^(2+))`(change of 5 units)
`overset(+3)(C_(2))O_(4)^(2-)rarr overset(+4)(2C)O_(2)` (change of 2 units)
`2MnO_(4)^(-)+5C_(2)O_(4)^(2-)+16H^(+)rarr2Mn^(2+)+10CO_(2)+8H_(2)O`
`x = 2, y = 5, z = 16`