Identify the basic salt from the following salts:(a) Na₂CO₃ (b) NH₄CI (c) NaNO₃ (d) KCl

Correct Answer: (a) Na2CO3  

Explanation: Salts can be classified in a variety of ways. Salts that produce hydroxide ions when dissolved in water are called Basic salts. These are produced by the reaction of a strong base and weak acid. The pH is greater than 7.

Hence, Sodium carbonate (Na₂CO₃) is a basic salt as it dissolves in water to form NaOH (strong base) and H₂CO₃ (weak acid).