Preparation of Potassium Permanganate

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. 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

Q. How many lines of symmetry does a rectangle have?​

1. 4
2. 1
3. 3
4. 2

Q.

The English alphabet S has 1 line of symmetry.

1. True

2. False