Question

Which of the following is a basic salt?

• A. Potassium chloride (KCl)
• B. Sodium carbonate (${\text{Na}}_2{\text{CO}}_3$)
• C. Sodium chloride (NaCl)
• D. Ammonium chloride (${\text{NH}}_4\text{Cl}$)

Answer 1

The correct option is B Sodium carbonate (${\text{Na}}_2{\text{CO}}_3$)

Salts that are formed after the reaction between a weak acid and a strong base are called Basic Salts.

Ammonium chloride ($N{H}_{4}Cl$) is formed after the reaction between ammonium hydroxide (a weak base) and hydrochloric acid (a strong acid). Therefore, $N{H}_{4}Cl$ is an acidic salt.

Sodium carbonate $N{a}_{2}C{O}_3$ is formed after the reaction between sodium hydroxide (a strong base) and carbonic acid (a weak acid). Therefore, it is a basic salt.

Sodium chloride (NaCl) is formed after the reaction between sodium hydroxide (a strong base) and hydrochloric acid (a strong acid). Therefore, NaCl is a neutral salt.

Potassium chloride (KCl) is formed after the reaction between potassium hydroxide (a strong base) and hydrochloric acid (a strong acid). Therefore, KCl is a neutral salt.