When a concentrated sodium chlorde solution is electriolysed using steel cathode and graphite anode, the products are

Options

A. sodium and chloride
B. hydrogen and oxygen
C. sodium hydroxide solution
D. hydrogen , chlorine and sodium hydroxide solution

Answer

D

Explanation

`2NaCI hArr 2Na^(+) + 2CI^(-)`
An anode , `2CI^(-) to Cl_(2) + 2e^(-)`
At cathode , ` 2Na^(+) +2e^(-) to 2Na `
`2Na + 2H_(2)O to 2NaOH + H_(2)`