Advertisements
Advertisements
Question
How will the action of dilute hydrochloric acid enable you to distinguish between sodium carbonate and sodium sulphite?
Advertisements
Solution
Sodium carbonate treated with dil. HCl results in the formation of sodium chloride with the liberation of carbon dioxide gas.
\[\ce{Na2CO3 + 2HCl ⟶ 2NaCl + H2O + CO2 ↑}\]
Sodium sulphite treated with dil. HCl results in the formation of sodium chloride with the liberation of sulphur dioxide gas.
\[\ce{Na2SO3 + 2HCl ⟶ 2NaCl + H2O + SO2 ↑}\]
RELATED QUESTIONS
State your observations when Dilute Hydrochloric acid is added to Sodium thiosulphate.
Name the gas that is produced in the given cases :
An action of dilute hydrochloride acid on sodium sulphide.
Write an equation for the reaction of hydrochloric acid on caustic soda solution.
Write an equation for the reaction of hydrochloric acid on zinc carbonate.
Name the following:
Gas obtained by treating ferrous sulphide with hydrochloric acid.
Name the following:
Five oxidizing agents that liberated chlorine from concentrated hydrochloric acid.
What is the function of HCI in preparation of aqua-regia?
What must be added to sodium chloride to prepare hydrogen chloride?
Write a fully balanced of the following case :
Magnesium metal is treated with dilute hydrochloric acid.
Match the following:
| Column A | Column B |
| 1. A substance that turns moist starch iodide paper blue. | A. Ammonium sulphate |
| 2. A compound which release a reddish brown gas on reaction with concentrated sulphuric acid and copper turnings. | B. Lead carbonate |
| 3. A solution of this compound gives dirty green precipitate with sodium hydroxide. | C. Chlorine |
| 4. A compound which on heating with sodium hydroxide produces a gas which forms dense white fumes with hydrogen chloride. | D. Copper nitrate |
| 5. A white solid which gives a yellow residue on heating | E. Ferrous sulphate |
