Question

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

Assertion (A): Ammonia is a base. Reason (R): It does not contain OH⁻ ions. It can donate a lone pair of electron.

Select from the following compounds which is not a base :

Read the text carefully and answer the questions: The strength of acid and base depends on the number of H⁺and the number of OH⁻respectively. If we take hydrochloric acid and acetic acid of the same concentration, say one molar, then these produce different amounts of hydrogen ions. Acids that give rise to more H⁺ions are said to be strong acids, and acids that give less H⁺ions are said to be weak acids. Can you now say what weak and strong bases are?