Salts
Salts: Overview
This topic covers concepts, such as, Salts, pH of Salts, Properties of Salt & Anhydrous Salts etc.
Important Questions on Salts
Write the chemical formula of the following salts:
- Baking soda
- Bleaching powder
- Washing soda
- Plaster of paris
- Gypsum
Name the salt that regains its colour when rehydrated.
Match the chemical substances given in Column (A) with their appropriate application given in Column (B).
| Column(A) | Column (B) | ||
| (a) | Bleaching powder | (i) | Preparation of glass |
| (b) | Baking soda | (ii) | Production of and |
| (c) | Washing soda | (iii) | Decolourisation |
| (d) | Sodium chloride | (iv) | Antacid |
The salts lose their water of crystallisation on heating, are called hydrated salts.
Which of the following hygroscopic substances is a plant product?
Many hygroscopic substances chemically reacts with water and water recovery is not easily possible.
Identify the hygroscopic salt in the following compounds:
Identify the efflorescent substance from the following:
Efflorescence is a process in which crystalline salt loses its shape and turns powdery. What is true in this context:
Compound used for preparation of Baking powder is
Which of the following is used to purify drinking water?
When crystals of copper sulphate are strongly heated, the residue obtained is
Washing soda is used to increase the hardness of the water.
Washing soda is used in the preparation of _____.
Which of the following acid is used as a component of baking powder?
Sodium carbonate is used in the preparation of
Washing soda is used for removing _____ (permanent/ temporary)hardness of water caused by the presence of the chlorides, nitrates and sulphates of calcium and magnesium in the water.
What is the chemical name and chemical formula of bleaching powder?
