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प्रश्न
State one appropriate observation of the following:
Action of dilute HCl or sodium sulphite.
उत्तर
Carbon dioxide gas has no effect on acidified KMnO4 or K2Cr2O7, but sulphur dioxide turns potassium permanganate from pink to colourless.
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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.
What would happen if :
Concentrated hydrochloric acid is kept open.
What would happen if
Hydrogen chloride prepared in laboratory, is passed through water, using a delivery tube.
How can you prove that hydrochloric acid contain :
Hydrogen
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.
State one appropriate observation of the following:
Concentrated HCl is made to react with mangesediaoxide
The following question is pertaining to the laboratory pertaining hydrogen chloride gas.
State a safety precaution you would take during the preparation of hydrochloric acid.
State your observation when :
Dilute hydrochloric acid is added to copper carbonate.
