What is the role of concentrated H 2 SO 4 in the laboratory preparation of nitric acid-A- More volatile acidB- More volatile baseC- Less volatile baseD- Less volatile acid

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Preparation of Nitric Acid

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Question

What is the role of concentrated $H_{2} S O_{4}$ in the laboratory preparation of nitric acid?

More volatile base

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Less volatile base

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Less volatile acid

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More volatile acid

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Solution

The correct option is C
Less volatile acid

In the preparation of nitric acid in the laboratory potassium nitrate and concentrated sulphuric acid is used. Concentrated sulphuric acid act as a less volatile acid in the laboratory preparation of nitric acid. Nitric acid is produced in the lab by heating potassium nitrate and concentrated sulphuric acid in a retort.

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What is the role of concentrated H2SO4 in the laboratory preparation of nitric acid?

What is the role of concentrated $H_{2} S O_{4}$ in the laboratory preparation of nitric acid?