Concentrated sulphuric acid is used in the laboratory preparation of nitric acid and hydrochloric acid because it is …………… [less volatile / stronger] in comparison to these two acids.

Write the equations for the laboratory preparation of the following salts using sulphuric acid:

(i) Copper sulphate from copper

(ii) Lead sulphate from lead nitrate

In the Contact process, sulphur trioxide is not converted to sulphuric acid by reacting it with water. Instead a two- step procedure is used. Write the equations for the two steps involved.

Write balanced equations for the following:

(i) Potassium hydrogen carbonate and dilute sulphuric acid.

(ii) Sodium nitrate and concentrated sulphuric acid.