In using sulphuric acid to prepare other acids, as mentioned above, which property of sulphuric acid is used?

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Solution

Being non-volatile in nature, sulphuric acid is used in the preparation of other volatile acids. For example, hydrochloric acid and nitric acid can be prepared from their salts by using concentrated sulphuric acid as shown below:

NaCl + H₂SO₄ $\overset{200 ° C}{\to}$ NaHSO₄ + HCl
KNO₃+ H₂SO₄ $\overset{< 200 ° C}{\to}$ KHSO₄ + HNO₃

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Other acids cannot be used to prepare sulphuric acid due to the volatile nature of sulphuric acid

Name two other acids other than sulphuric acid, which can be prepared by using sulphuric acid.

(a) Which property of sulphuric acid accounts for its use as a dehydrating agent ?

(b) Concentrated sulphuric acid is both an oxidizing agent and a non-volatile acid. Write on equation each to illustrate the above mentioned properties of sulphuric acid.

(a) Name the process used for the large scale manufacture of sulphuric acid.
(b) Which property of sulphuric acid accounts for its use as a dehydrating agent?
(c) Concentrated sulphuric acid is both an oxidising agent and a non-volatile acid. Write one equation each to illustrate the properties of sulphuric acid mentioned above.

(c) (i) Name the process used for the large scale manufacture of sulphuric acid.
(ii) Which property of sulphuric acid accounts for its use as a dehydrating agent?
(iii) Concentrated sulphuric acid is both an oxidizing agent and non-volatile acid. Write one equation each to illustrate the above mentioned properties of sulphuric acid.

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