Question

The constituents of a mixture of ${\mathrm{CaCO}}_3\mathrm{and}\mathrm{NaCI}$ are separated by -

• A. Using evaporation method
• B. Using sublimation method
• C. Dissolving in water, filtration, and evaporation
• D. Using distillation method

Answer 1

The correct option is C

Dissolving in water, filtration, and evaporation

• Mixture - ${\mathrm{CaCO}}_3\mathrm{and}\mathrm{NaCI}$
• Principle used - Dissolving in water, filtration, and evaporation
• Dissolve the mixture in water
• Since ${\mathrm{CaCO}}_3$ is insoluble in water, it will settle down at the bottom.
• Hence, ${\mathrm{CaCO}}_3$ can be separated by using the method of filtration.
• Now, $\mathrm{NaCI}$ left in the solution can be separated using evaporation.
• option C is correct.