There is no change in the colour of red litmus and blue lit mus paper when introduced into an aqucous solution of sodium chloride. A fter passing direct current through the same solution, red litmus ehanges to blue colour. Which product is responsible for this change? Mention any two uses of this produet.

There is no change in the colour of red litmus and blue lit mus paper

1.	There is no change in the colour of red litmus and blue lit mus paper when introduced into an aqucous solution of sodium chloride. A fter passing direct current through the same solution, red litmus ehanges to blue colour. Which product is responsible for this change? Mention any two uses of this produet.
Answer» SOLUTION :`Sodium hydroxide // NaOli.` (i) Degreasing netals (ii) soaps and detergents (III) Paper NMAKING (IV) ARTIFICIAL fibres.