Preparation of Potassium Permanganate

Q.

The composition of nitric acid was first determined by _____________

1. Mayow

2. Lavoisier

3. Cavendish

4. Gay Lussac

Q. Which acid is used in the manufacture of chlorine to absorb the water vapour formed?

1. Sulphuric acid
2. Sulphurous acid
3. Nitric acid
4. Hydrochloric acid

Q. Which property of sulphuric acid accounts for its use as a dehydrating agent?

1. The hydrophobic nature of sulphuric acid.
2. The geometry of the sulphuric acid molecule.
3. The strong affinity of sulphuric acid for water.
4. The non-affinity of sulphuric acid for water.

Q.

In industries, Chlorine is used in the manufacturing of Hydrogen-chloride. Explain.

Q. What are the chemicals used in the laboratory preparation of chlorine?

1. Potassium permanganate
   
2. Hydrochloric acid
   
3. Potassium chloride
   
4. Carbonic acid
   

Q. is used as a dehydrating agent in the laboratory preparation of chlorine.

1. Hydrochloric acid
2. Nitric acid
3. Sulphuric acid
4. Sulphurous acid