Question

Sodium chloride and sand is mixed in water. The resultant mixture is heated for a long time. What will be the end products of this process?

• A. Sodium chloride and sand
• B. Only sodium chloride
• C. Only sand
• D. Only sodium

Answer 1

The correct option is A

Sodium chloride and sand

When the mixture of salt (sodium chloride), sand and water is heated for a long time, water evaporates from the mixture in the form of water vapour. Sodium chloride and sand do not evaporate as they have very high boiling point.