Write the equation for: (a) the preparation of hydrogen chloride from sodium chloride and sulphuric acid. State whether the sulphuric acid should be concentrated or dilute. (b) the reaction between hydrogen chloride and ammonia.
In the preparation of hydrogen chloride from sodium chloride and sulphuric acid, the sulphuric acid used should be concentrated
To prepare hydrogen chloride from sodium chloride and concentrated sulphuric acid.