Advertisements
Advertisements
Question
For the preparation of hydrochloric acid in the laboratory:
What arrangement is done to dissolve hydrogen chloride gas in water?
Advertisements
Solution
A special funnel arrangement is used in which an inverted funnel, connected to the hydrogen chloride gas supply, is placed in the beaker in such a way that it just touches the water taken in the trough. This arrangement minimises back suction.
APPEARS IN
RELATED QUESTIONS
State your observation When moist starch iodide paper is introduced into chlorine gas.
How will the action of dilute hydrochloric acid enable you to distinguish between sodium thiosulphate and sodium sulphite?
MnO2, PbO2 and red lead react with conc. HCl acid to liberate Cl2.
What is the common property being shown by these metal oxides?
State the composition of aqua regia. State which component is the oxidizing agent in aqua regia.
Name the following:
Gas obtained by treating ferrous sulphide with hydrochloric acid.
- What must be added to sodium chloride to prepare hydrogen chloride?
- Write the equation for the reaction which takes place in question (a).
How will you identify?
An amphoteric hydroxide
How will you distinguish between the two black samples, CuO and MnO2 with a chemical test?
Write the balanced equation for the reaction of dilute hydrochloric acid with the following:
Iron
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.
