During an electrolysis of conc `H_(2)SO_(4)` , perdisulphuric acid `(H_(2)S_(2)0_(8))` and `O_(2)` are formed in equimolar amount. The moles of `H_(2)` that will be formed simultaneously will be
`a. `Thrice that of `O_(2)" "b.` Twice that of `O_(2)`
`c.` Equal to that of `O_(2)." "d.` Half of that of `O_(2)`
A. Thrice that of `O_(2)` in "mole"s
B. Twice that of `O_(2)` in "mole"s
C. Equal to that of `O_(2)` in "mole"s
D. Half that of `O_(2)` in "mole"s