EVERYDAY SCIENCE

Detailed explanation-1: -So, Acids turn blue litmus red whereas bases turn red litmus blue.

Detailed explanation-2: -The main use of litmus is to test whether a solution is acidic or basic, as blue litmus paper turns red under acidic conditions, and red litmus paper turns blue under basic or alkaline conditions, with the color change occurring over the pH range 4.5–8.3 at 25 °C (77 °F). Neutral litmus paper is purple.

Detailed explanation-3: -When red litmus paper comes into contact with any alkaline substance, it turns blue. Some examples of alkaline substances are ammonia gas, milk of magnesia, baking soda and limewater.

Detailed explanation-4: -Red litmus is the paper manufactured by dye and which is red in colour. This paper is used to test acidic and basic nature of the solution. On solution being basic, red litmus turns blue in colour.

Detailed explanation-5: -Acids turn blue litmus red, whereas Bases turn red litmus blue.