Water of crystallization is the fixed number of water molecules chemically attached to a unit of a salt in its crystalline form.

True

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False

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Solution

The correct option is A True
Water of crystallization means the number of water molecules present in one formula unit of a salt.
For example: $C a S O_{4} .2 H_{2} O$ is called calcium sulphate dihydrate with and it has $2$ molecules of water of crystallization.

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5g of crystalline salt rendered anhydrous; lost 1.8g of water. The formula weight of the anhydrous salts is 160. The number of water molecules of crystallization is:

Q. Copper sulphate crystals which seem to be dry contain water of crystallization. When we heat the crystals, this water is removed and the salt turns white. If you moisten the crystals again with water, you will find that blue colour of the crystals reappears.

The water of crystallization is the fixed number of water molecules present in one formula unit of a salt. Five water molecules are present in one formula unit of copper sulphate. The chemical formula for hydrated copper sulphate is

C u {S O}_{4}

5 H_{2} O

. Now you would be able to answer the question whether the molecule of

{N a}_{2} {C O}_{3}

10 H_{2} O

is wet. One other salt, which possesses water of crystallization is gypsum. It has two water molecules as a water of crystallization. It has the formula

C a {S O}_{4}

2 H_{2} O

What are the uses of this salt?

5g of crystalline salt rendered anhydrous; lost 1.8g of water. The formula weight of the anhydrous salts is 160. The number of water molecules of crystallization is:

5g of crystalline salt rendered anhydrous; lost 1.8g of water. The formula weight of the anhydrous salts is 160. The number of water molecules of

crystallization is

Q. Name the following
Name a crystalline salt which does not contain water of crystallization.

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Water of crystallization is the fixed number of water molecules chemically attached to a unit of a salt in its crystalline form.

The correct option is A TrueWater of crystallization means the number of water molecules present in one formula unit of a salt.For example: CaSO4.2H2O is called calcium sulphate dihydrate with and it has 2 molecules of water of crystallization.

The correct option is A True
Water of crystallization means the number of water molecules present in one formula unit of a salt.
For example: $C a S O_{4} .2 H_{2} O$ is called calcium sulphate dihydrate with and it has $2$ molecules of water of crystallization.