Question

In an experiment to separate the components of a mixture of sand, common salt and ammonium chloride, the component which will be removed by filtration is:

• A. sand
• B. common salt
• C. ammonium chloride
• D. none of these

Answer 1

The correct option is A

sand

Explanation for correct option:

(a) Sand:

1. When we have a mixture of common salt, sand and ammonium chloride.
2. First sublimation is performed and then dissolve the salt and sand in water.
3. Then filtration is used as the third step during filtration sand gets separated out from the solution of salt and water.
4. The filtrate contains the salt solution, salt can be obtained by evaporation.

Explanation for incorrect options:

(b) Common salt:

Common salt on adding water gets dissolved into it and can be separated only by evaporation at the end, filtration cannot be used here.

(c) Ammonium chloride:

Ammonium chloride sublimes during the first step of separation by sublimation and hence cannot be separated by filtration.

(d) None of these:

Since sand is the component that can be separated by filtration thus option (d) is incorrect.

Hence, option (a) is the correct option.