On electrolysis of dilute sulphuric acid using platinum electrodes, the product obtained at the anode will be

Options

A. Oxygen gas
B. `H_(2)S` gas
C. `SO_(2)` gas
D. Hydrogen gas

Answer

A

Explanation

The following reactions take place on electrolysis of dilute sulphuric acid on using pt electrodes are:
At cathode:
`4H^(+) + 4e^(-) to 2H_(2)(g)`
At anode:
`2H_(2)O(l) to O_(2)(g) + 4H^(+) (aq) + 4e^(-)`
Thus, the product obtained at anode is `O_(2)`