Give Four Substances Which Contain Water of Crystallization and Write Their Common Name. - Chemistry

Give four substances which contain water of crystallization and write their common name.

Short Note

(i) Na₂CO₃.10H₂O = Washing soda
(ii) MgSO₄.7H₂O = Epsom salt
(iii) CuSO₄.5H₂O = Blue vitriol
(iv) ZnSO₄.7H₂O = White vitriol

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Chapter 3 Study Of Acids, Bases and Salts
Exercise 2 | Q 15.2 | Page 71

The pH of a salt used to make tasty and crispy pakoras is 14. Identify the salt and write a chemical equation for its formation. List its two uses.

Write a balanced equation for the preparation of the following salts:

Zinc carbonate from Zinc sulphate

Consider the following salts:
Na₂CO₃, NaCl, NH₄Cl, CH₃COONa, K₂SO₄, (NH₄)₂SO₄
Which of these salts will give:

basic solutions (or alkaline solutions)?

A salt X when dissolved in distilled water gives a clear solution which turns red litmus blue. Explain the phenomenon.

Name a salts whose solubility increases with temperature.

Define the following term : Water of crystallization

Outline the steps required to convert hydrogen chloride to anhydrous iron (III) chloride. Write the equations for the reactions.

State what would you observe when :
Washing soda crystals are exposed to the atmosphere.

Name two carbonates do not produce carbon dioxide on heating.

Salts A, B, C, D, and E undergo reactions (i) to (v) respectively. Identify the anion present in these salts on the basis of these reactions.

When silver nitrate solution is added to a solution of A, a white precipitate, insoluble in dilute nitric acid, is formed.
The addition of dilute hydrochloric acid to B produces a gas which turns lead acetate black paper.
When a freshly prepared solution of ferrous sulphate is added to a solution of C and concentrated sulphuric acid is gently poured from the side of the test-tube, a brown ring is formed.
When dilute sulphuric acid is added to D, a gas is produced which turns acidified potassium dichromate solution from orange to green.
The addition of dilute hydrochloric acid to E produces effervescence. The gas produced turns lime water milky but does not affect acidified potassium dichromate solution.