Question

iii) iv) Which substances will not be affected by Blue litmus to red litmus
​

Answer 1

Answer:

Acids, Bases and Salts

The nature of the solution can be either a base or a neutral solution. Acidic solutions change blue litmus red, hence it is not acidic. Bases change red litmus to blue hence there is no change in the colour of blue litmus paper. Neutral solutions have no effect on litmus paper.

Answer 2

Answer:

The solutions which do not change the colour of either red or blue litmus are known as neutral solutions. These substances are neither acidic nor basic.