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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
How will you prepare hydrochloric acid in laboratory?
Explain, why (or give reasons for)
A solution of HCl gas in water turns blue litmus red and conducts electricity, while HCI gas dissolves in toluene and it has no effect on litmus and does not conduct electricity.
Explain, why (or give reasons for)
An aqeous solution of chlorine is acidic is nature.
Write the uses of hydrochIoric acid.
Fill in the blank:
Aqua-regia is a mixture of ___________ .
Fill in the blank:
___________ agent converts hydrochloric acid to chlorine.
Fill in the blank:
Hydrogen and chlorine reacts in presence of ___________ to form hydrogen chloride.
Write balanced equation for the following reaction:
Red lead (trilead tetroxide) is warmed with concentrated hydrochloric acid.
Why is hydrogen chloride not collected over water?
Aqua regia is a mixture of ______.
