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प्रश्न
How can you prove that hydrochloric acid contain :
Hydrogen
उत्तर
On reaction with metals, hydrochloric acid forms respective chlorides and liberates hydrogen.
Zn + 2HCI → ZnCl2 + H2 ↑
APPEARS IN
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.
Write three equations to show that hydrochloric acid acts as an acid.
Give two tests for hydrochloric acid.
Fill in the blank:
Aqua-regia is a mixture of ___________ .
Fill in the blank:
Hydrogen and chlorine reacts in presence of ___________ to form hydrogen chloride.
Name the gas evolved when an oxide and concentrated hydrochloric acid are heated.
Outline the steps required to convert hydrogen chloride to anhydrous FeCl3. Write equations for the equations involved.
In the laboratory preparation of hydrochloric acid, \[\ce{HCl}\] gas is dissolved in water.
- Draw a diagram to show the arrangement used for the absorption of \[\ce{HCl}\] 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 \[\ce{HCl}\] gas when the reactants are:
- Below 200°C
- Above 200°C
State one appropriate observation of the following :
Copper sulphate is treated with dilute hydrochloric acid
State one appropriate observation of the following:
Which gas is evolved when potassium sulphite with dilute hydrochloric acid.
