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प्रश्न
State one appropriate observation of the following:
Concentrated HCl is made to react with mangesediaoxide
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उत्तर
Calcium nitrate forms no ppt. even with addition of excess of NH4OH, whereas zinc nitrate forms a white gelatinous ppt. which dissolves in excess of NH4OH.
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संबंधित प्रश्न
How will you prepare hydrochloric acid in laboratory? OR
Describe briefly the method employed to dissolve hydrogen chloride gas in water as it is prepared. What is the purpose of funnel while preparing hydrochloric acid from HCI gas?
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)
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 three equations to show that hydrochloric acid acts as an 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.
Aqua regia is a mixture of ______.
State your observation when :
Dilute hydrochloric acid is added to copper carbonate.
