- Preparation of hydrogen chloride from sodium chloride; the laboratory method of preparation can be learnt in terms of reactants, product, condition, equation, diagram or setting of the apparatus, procedure, observation, precaution, collection of the gas and identification.
Explain why thick white fumes are formed when a glass rod dipped in NH2OH is brought near the mouth of a bottle full of HCl gas.
For the preparation of hydrochloric acid in the laboratory:
Why is the direct absorption of hydrogen chloride gas in water not feasible?
Explain why A solution of hydrogen chloride in water turns blue litmus red, and conducts electricity, while a solution of the same gas in toluene:
(i) has no effect on litmus, and
(ii) does not conduct electricity.