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प्रश्न
State one appropriate observation of the following:
Copper sulphate is treated with dilute hydrochloric acid.
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उत्तर
A colourless gas having the smell of rotten eggs is given off. The gas evolved is H2S:
\[\ce{CuS + 2HCl -> CuCl2 + H2S}\]
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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.
Explain, why (or give reasons for)
An aqeous solution of chlorine is acidic is nature.
Describe an experiment to prove the following:
HCI is highly soluble in water.
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The white precipitate of lead chloride is soluble in _________
Write equation for the reaction between hydrochloric acid of the following: Bleaching powder
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Write balanced equation for the following reaction:
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State one reason why tap water is not used to prepare a solution of silver nitrate in the laboratory.
Correct the following statement:
Hydrochloric acid is prepared in the laboratory by passing hydrogen chloride directly through water.
