Question

Blue litmus paper is dipped in a solution of common salt.​

Answer 1

Explanation:

The simple answer is “Nothing happens”

NaCl is the salt of a strong acid and a strong base, so a solution of the salt would be neutral. Whichever colour of litmus you use would not change colour.

Answer 2

If blue litmus paper is dipped in a solution of common salt., no change in the colour is observed.

Explanation:

• Limus paaper is used to test the pH of the solution or to check whether the given solution is acidic or basic.
• Blue litmus turns red when it is dipped in an acidic solution and remains blue when treated with basic or neutral solution.
• On the other hand, red litmus paper turns blue when it is dipped in basic solution and remains red when trated with acidic or neutral solution.
• A solution of common salt is a neutral solution as common salt is a salt of a strong acid and a strong base.
• Thus, if blue litmus paper is dipped in a solution of common salt., it remains blue and no change in the colour takes place.