During electrolysis of aqueous solution of NaCI in Castner Kellner cell, the gas(es) produced are

Options

A. `NaOH`
B. `CI_(2)`
C. `O_(2)`
D. `H_(2)`

Answer

B, C, D

Explanation

Brine is NaCI solution.
`NaCI rarr Na^(o+)+CI^(Θ)`
`H_(2)O rarr H^(o+)+overset(Θ)OH`
At anode: `2CI^(Θ)rarr CI_(2)+2e^(Θ)`
At cathode: `2H^(o+)+2e^(Θ)rarr H_(2)`
`Na^(o+)+e^(Θ)rarr Na`
`2Na+xHg rarr Na_(2)Hgx`
At anode: `Na_(2)Hgx+2overset(Θ)OH rarr 2NOH+xHg`