Question

Which of the following are the uses of HCl?

• A. It is used in the preparation of aqua regia.
• B. It is used in the preparation of chlorine and chloride salts.
• C. It is used in the laboratory as a reagent.
• D. All of the above

Answer 1

The correct option is D All of the above

HCl is used in the laboratory as a reagent. It is used in the preparation of aqua regia (a mixture of 3 volume of concentrated HCl and 1 volume of concentrated $HN{O}_3$) for dissolving gold. It is also used in the preparation of chlorine and chloride salts. HCl is used for the preparation of dyes and machines and to wash basin and sanitary materials.