Question

You have been provided with three test tubes. One of them contains distilled water and the other two contain an acidic solution and a basic solution, respectively. If you are given only red litmus paper, how will you identify the contents of each test tube?

Select from the following the statement which is true for bases.

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.