Question

Chlorine gas is dried over:
(A) $CaO$
(B) $NaOH$
(C) $H_{2}^{{}}SO_{4}^{{}}$
(D) $HBr$

Answer 1

Firstly we should be clear that the compound talked about is Sulphuric Acid. It has a lot of physical and chemical properties like the colournless nature of the compound. Now after getting aware of the nature of the compound we can easily get the correct option which is that it is a strong acid.

Complete answer:
In the given question we have to find out the correct formula of the acid. Now after that we must be aware of the physical properties of the acid as it is what will govern the process that it would carry. Now when we get aware of the properties then we can use them to get which of these options is the correct one. So we should keep various facts and stats in mind for the respective question.
Firstly we have to talk about the physical nature of the Sulfuric Acid. It is a strong mineral acid that is colourless when it is in a pure state. This is also the chemical which is used as a chemical intermediate.
- It is used in order to manufacture other chemicals and to clean metal surfaces. The given chemical formula for the sulfuric acid is $H_{2}^{{}}SO_{4}^{{}}$Sulfuric acid in general looks colourless and clear.
Conc. $H_{2}^{{}}SO_{4}^{{}}$ being a strong acid displaces $HCl$ and reduces its effect.
Therefore the correct answer is option ‘C’, i.e., Chlorine gas is dried over Hydrosulphuric acid.

Note:
The acid's corrosiveness towards other materials can be mainly described due to its strong acidic nature, and if at a high concentration it's dehydrating alongside oxidizing properties. It is also hygroscopic, readily absorbing water vapor from the air.