Question

Mixture of salt and ammonium chloride can be separated by the crystallisation process.

• A. True
• B. False

Answer 1

Answer: (B)

Explanation:

Salt Ammonium chloride

• Salt is a powder. Ammonium chloride is a powder.
• So a mixture of salt and ammonium chloride cannot be separated by crystallisation as crystallisation requires a solution.
• Salt and ammonium chloride can be separated using another process called sublimation.
• Ammonium chloride directly becomes a gas from a solid on heating.
• So when the mixture is heated, ammonium chloride would directly convert to a gas which can be captured.
• Salt will be left behind as a solid as salt doesn't undergo sublimation.

Hence, the given statement is false.