ICSE Class 10 Chemistry 2020 Solved Paper

Hydrogen chloride gas is prepared in the laboratory using concentrated sulphuric acid and sodium chloride. Answer the questions that follow based on this reaction:

Question : 60

Total: 86

Why is concentrated sulphuric acid used instead of concentrated nitric acid?

Solution:

Conc. HNO3 is volatile and will evaporate at room temperature. Conc. H2SO4 is non-volatile so it is the acid used in this preparation.

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