What is the Purpose of Conc. H2so4 in the Above Preparation ?

What is the purpose of Conc. H₂SO₄ in the above preparation?

One Line Answer

Concentrated sulphuric acid is non-volatile and produce volatile nitric acid.

shaalaa.com

Laboratory Preparation of Nitric Acid

Is there an error in this question or solution?

Chapter 10: Study of Compounds: Nitric Acid - Exercises [Page 228]

Chapter 10 Study of Compounds: Nitric Acid
Exercises | Q 8. (b) | Page 228

Explain the following:

Concentrated nitric add appears yellow when it is left standing in a glass bottle.

Ammonia is used in the Ostwald process.

Give the sources of reactants used in this process.

Can we use conc. HCl in place of Conc. H₂SO₄ ?

Describe the Ostwald's process for the manufacture of nitric acid with labeled diagram.

Give reason for the following:
Commercial nitric acid is yellow in colour, but when it is diluted with water, it turns colourless.

Write balanced equation and name the product formed when :
Cupric oxide reacts with nitric acid.

Write balanced equation and name the product formed when :
Concentrated nitric acid is heated.

What do you observe when?
Concentrated nitric acid is dropped on a hot surface?

What do you observe when?
Hydrogen sulphide is bubbled through conc. HNO₃?

Name (formula is not acceptable) the gas produced in the following reaction:
By the action of concentrated nitric acid on copper.