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प्रश्न
What wilI you observed when concentrated HCI is added to lead (IV) oxide and warmed ?
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उत्तर
When concentrated HCI is added to lead (IV) oxide and warmed, formation of metaI chloride, water and greenish yellow chlorine gas will occur.
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संबंधित प्रश्न
Explain, why (or give reasons for)
Hydrochloric acid cannot be concentrated above 22.2% by boiling.
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.
Write three equations to show that hydrochloric acid acts as an acid.
Write the uses of hydrochIoric acid.
State one reason why tap water is not used to prepare a solution of silver nitrate in the laboratory.
Why is hydrogen chloride not collected over water?
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.
State your observation when dilute hydrochloric acid is added to sodium thiosulphate.
