Electrolysis of a concentrated aqueous solution of NaC1 results in

Options

A. Turns red litmus into blue
B. Turns blue litmus into red
C. Remains colourless with phenolphthalein
D. The colour of red or blue litmus does not change

Answer

A

Explanation

The resulting solution becomes alkaline at the end of electrolysis, hence turns red litmus into blue.