Advertisements
Advertisements
Question
In the laboratory preparation, HCl gas is dried by passing through ______.
Options
Dilute nitric acid
Concentrated sulphuric acid
Dilute sulphuric acid
Acidified water
Solution
In the laboratory preparation, HCl gas is dried by passing through concentrated sulphuric acid.
Explanation:
- HCI gas is dried by passing it through concentrated H2SO4.
- Due to its hydroscopic nature, concentrated sulphuric acid takes moisture from the air, dilutes, and works as a drying agent.
APPEARS IN
RELATED QUESTIONS
Certain blank spaces are left in the following table and these are labelled as A, B, C, D
and E. Identify each of them
| Lab preparation of | Reactants used | Products formed | Drying Agent | Method of collection |
|
| 1 | HCl gas | NaCl + H2SO4 |  |
conc. H2SO4 |  |
| 2 | NH3 gas |
|
Mg(OH)2 NH3 |
 |
 |
The following are pertaining to the laboratory preparation of hydrogen chloride gas.
Name the drying agent used and justify your choice.
Name the acid used for the preparation of hydrogen chloride gas in the laboratory. Why is this particular acid preferred to other acids?
For the preparation of hydrochloric acid in the laboratory:
Why is the direct absorption of hydrogen chloride gas in water not feasible?
Explain why when the stopper of a bottle full of hydrogen chloride gas is opened, there are fumes in the air.
The given set up in the figure is for the preparation of an acid.
- Name the acid prepared by this method.
- Name the reactants used.
- Why an empty flask is used?
- What is the drying agent used? Why is this drying agent chosen?
- What is the role of the inverted funnel in the arrangement?
Explain, why (or give reasons for)
In the preparation chloride from sodium chloride, the gas can be obtained below 200°C or above. But the lower temperature is preferred.
Explain, why (or give reasons for)
Hydrogen chloride is not collected over water.
Mention the reaction condition and give balanced equation to obtain: Cl2 gas from HCI gas.
Choose the correct answer from the options given below:
Bleaching powder reacts with few drops of concentrated HCl to give
Write balanced equation for the reaction between dilute hydrochloric acid and sodium sulphite.
What property of hydrogen chloride is demonstrated when it is collected by downward delivery (upward displacement) ?
The following question is pertaining to the laboratory pertaining hydrogen chloride gas.
Name the drying agent used and justify your choice.
One chemical test that would enable you to distinguish between the following pair of chemicals. Describe what happens with each chemical or state 'no visible reaction'.
Sodium chloride solution and sodium nitrate solution.
One chemical test that would enable you to distinguish between the following pair of chemicals. Describe what happens with each chemical or state 'no visible reaction'.
Sodium sulphate solution and sodium chloride solution.
Give one test to distinguish between the following pair of chemicals.
Sodium nitrate solution and sodium chloride solution.
Answer the following question related to the laboratory preparation of the hydrogen chloride gas:
Why is sodium chloride preferred to other metallic chlorides?
Answer the following question related to the laboratory preparation of the hydrogen chloride gas:
State the temperature required in the preparation.
State a relevant reason for the following:
Hydrogen chloride gas cannot be dried over quick lime.
