What is meant by water of crystallisation?
Answer and explanation
Correct answer: Fixed amount of water in salt crystals
Water of crystallisation means the definite number of water molecules chemically associated with one formula unit of certain salts and incorporated into their crystal structure. For example, CuSO₄·5H₂O contains five water molecules per formula unit. This is not simply river water or any water mixed with an acid, and it is not a gas formed from a base. Therefore option A is correct.
Frequently asked questions
What is the correct answer to this question?
Fixed amount of water in salt crystals
Why is this the correct answer?
Water of crystallisation means the definite number of water molecules chemically associated with one formula unit of certain salts and incorporated into their crystal structure. For example, CuSO₄·5H₂O contains five water molecules per formula unit. This is not simply river water or any water mixed with an acid, and it is not a gas formed from a base. Therefore option A is correct.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Acids, Bases, and Salts.
