Rohan observes the following while doing an experiment. Solution P Q R S Blue litmus Red Deep Red No change Mauve Red litmus No change No change Blue Mauve (a) Which of these is strongly acidic and basic? (b) Which two solutions will react to show neutralization reaction?

(a) In this experiment, solution Q is strongly acidic and solution R is strongly basic. A strongly acidic solution turns blue litmus paper deep red and a basic solution turns red litmus paper blue. (b) When an acid and a base react to form salt and water, it is a neutralisation reaction. Solution P is an acid and solution R is a base here. These will react to show neutralisation reaction and form salt and water.