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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)
An aqeous solution of chlorine is acidic is nature.
What would happen if :
Concentrated hydrochloric acid is kept open.
Describe an experiment to prove the following:
HCI is highly soluble in water.
Write the uses of hydrochIoric acid.
Fill in the blank:
A constant boiling mixture of water and hydrochloric acid is also called as _______________.
Fill in the blank:
Hydrogen and chlorine reacts in presence of ___________ to form hydrogen chloride.
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
State one appropriate observation of the following:
Copper sulphate is treated with dilute hydrochloric acid.
