Question

P and Q are aqueous solutions of sodium chloride and sodium hydroxide respectively, Which of these will turn blue litmus red and which trrns red litmus blue

Answer 1

Hey dear!!

There will no change of colour in blue or red litmus paper with sodium chloride as sodium chloride(NaCl) is neutral.

Sodium hydroxide will change the colour of red litmus to blue since sodium hydroxide (NaOH) is a base.

Hope helped!!