Advertisements
Advertisements
प्रश्न
How will the action of dilute hydrochloric acid enable you to distinguish between sodium carbonate and sodium sulphite?
Advertisements
उत्तर
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.
\[\ce{Na2SO3 + 2HCl ⟶ 2NaCl + H2O + SO2 ↑}\]
संबंधित प्रश्न
Complete the following by selecting the correct option from the choices given:
The metal which does not react with water or dilute H2SO4 but reacts with concentrated H2SO4 is _________. (Al/Cu/Zn/Fe)
State one relevant observation for the following
When hydrogen sulfide gas is passed through lead acetate solution.
Name the gas that is produced in the given cases :
An action of dilute hydrochloride acid on sodium sulphide.
Name an element which reacts with hydrogen to form a compound which is strongly acidic in water.
Give reason for the following:
An aqueous solution of chlorine in acidic in nature
Hint : Cl2 + H2O ⟶ HCl +HClO
Give three distinct test [apart from using an indicator] you would carry out with solution of HCl to illustrate the typical properties of an acid.
A solution of hydrogen chloride in water is prepared. The following substances are added to separate portions of the solution:
| S. No. | Substances added | Gas evolved | Odour |
| 1. | Calcium carbonate | _________ | _________ |
| 2. | Magnesium ribbon | _________ | _________ |
| 3. | Manganese (IV) oxide with heating | _________ | _________ |
| 4. | Sodium sulphide | _________ | _________ |
Complete the table by writing the gas evolved in each case and its odour.
Write the balanced equation for the reaction of dilute hydrochloric acid with the following:
Sodium hydrogen carbonate
Write the balanced equation for the reaction of dilute hydrochloric acid with the following:
Iron (II) sulphide
The ratio between the volumes occupied by 4.4 grams of carbon dioxide and 2 grams of hydrogen gas is ______.
