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प्रश्न
Aqua regia is a mixture of ______.
विकल्प
Dilute hydrochloric acid and concentrated nitric acid
Concentrated hydrochloric acid and dilute nitric acid
Concentrated hydrochloric acid [1 part] and concentrated nitric acid [3 parts]
Concentrated hydrochloric acid [3 parts] and concentrated nitric acid [1 part]
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उत्तर
Aqua regia is a mixture of concentrated hydrochloric acid [3 parts] and concentrated nitric acid [1 part].
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संबंधित प्रश्न
Explain, why (or give reasons for)
Only a very dilute solution of hydrogen chloride in water can be concentrated by boiling the solution while a very concentrated solution would become less concentrated when boiled.
What would happen if :
Concentrated hydrochloric acid is kept open.
Describe an experiment to prove the following:
HCI is highly soluble in water.
Fill in the blank:
The white precipitate of lead chloride is soluble in _________
Outline the steps required to convert hydrogen chloride to anhydrous FeCl3. Write equations for the equations involved.
Write balanced equation for the following reaction:
Red lead (trilead tetroxide) is warmed with concentrated hydrochloric acid.
Write a balanced equation for the reaction of zinc and dilute hydrochloric acid.
Why is hydrogen chloride not collected over water?
In the laboratory preparation of hydrochloric acid, HCl gas is dissolved in water.
- Draw a diagram to show the arrangement used for the absorption of HCl gas in water.
- State why such an arrangement is necessary? Give two reasons for the same.
- Write the chemical equation for the laboratory preparation of HCl gas when the reaction is:
- Below 200°C
- Above 200°C
The following question is pertaining to the laboratory preparation of hydrogen chloride gas.
State a safety precaution you would take during the preparation of hydrochloric acid.
