Question

An example of soluble carbonate is-

• A. Calcium Carbonate
• B. Zinc carbonate
• C. Copper Carbonate
• D. Potassium Carbonate

Answer 1

The correct option is D

Potassium Carbonate

Explanation of the correct option:

The correct option is D.

Only alkali carbonates (Sodium carbonate (Na₂CO₃) and potassium carbonate (K₂CO₃₎) are soluble in water and other carbonates are insoluble in water.

Thus, Potassium Carbonate (K₂CO₃ ) is a soluble carbonate.

Explanation of the incorrect options:

Option A :

Calcium carbonate (CaCO₃ )is not an alkali carbonate, thus it is insoluble in water.

Option B :

Zinc carbonate (ZnCO₃) is not an alkali carbonate, thus it is insoluble in water.

Option C:

Copper carbonate (CuCO₃) is not an alkali carbonate, thus it is insoluble in water.

An example of soluble carbonate is Potassium Carbonate.