Question

A salt which does not contain water of crystallization is used for disinfecting drinking water to make it free of germs. Identify the salt and write the chemical equation for its formation. List its two uses (other than the property of disinfecting water).​

Answer 1

Answer:

Sodium Nitrate, Potassium Chloride, Potassium Nitrate, Barium Sulphate are the salts which does not contain water of crystallization. Salt is an ionic compound that can be formed by the neutralization reaction of an acid and a base .

Explanation:

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Answer 2

The salt is aluminium sulphate.

• The chemical formula of aluminium sulphate is $Al_2(SO_4)_3$.
• So, it does not contain water of crystallization.
• Aluminium sulphate is widely used for disinfecting drinking water to make it free of germs.
• It is prepared by the reaction of three moles of ferrous sulphate and two moles of aluminium.
• The reaction is-

$3FeSO_4+2Al\rightarrow Al_2(SO_4)_3+3Fe$.

• It is used in making paper and in baking soda.