Explain why sulphuric acid has a high boiling point. How do chemists make practical use of the high , boiling point of this acid? Give examples.

Explanation

Practical uses of high boiling point of `H_(2)SO_(4)` :
1. The boiling point of conc. `H_(2)SO_(4)` is 611K. Most of the organic compounds melt within this temperature. Hence, it is used in the melting point bath for determination of melting points of organic compounds. 2. Acids having lower boiling points are more volatile than `H_(2)S0_(4)` (e.g., HCl, `HNO_(3)` ). They are prepared from their respective salts (i.e., NaCl, `NaNO_(3)` ) by distillation with `H_(2)SO_(4)` .