Four moles of electrons were transferred from anode to cathode in an experiment on electrolysis of water. The total volume of the tow gases (dry and at `STP)` produced will be approximately (in litres)

Options

A. `22.4`
B. `44.8`
C. `67.2`
D. `89.4`

Answer

C

Explanation

`H_(2)O rarr H_(2)+(1)/(2)O_(2)+2e^(-)`
`2H_(2)O rarr 2H_(2) +O_(2) +4e^(-)`
gases `[H_(2)+O_(2)] = 2 xx 22.4 +22.4 = 67.2`