Question

Assertion (A): Ammonium hydroxide is Weak Base Reason R: Phenolphthalein becomes pink in NH₄OH

Assertion (A): Ammonia solution is an alkali. Reason (R): Ammonia solution turns blue litmus paper red.

Acid present in tomato is :

Two salts 'X' and 'Y' are dissolved in water separately. When phenolphthalein is added to these two solutions, the solution 'X' turns pink and the solution 'Y' does not show any change in colour, therefore 'X' and 'Y' are