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प्रश्न
Identify the gas evolved and give the chemical test in the following cases
Dilute hydrochloric acid reacts with iron (II) sulphide.
उत्तर
Hydrogen sulphide
The gas released has a rotten egg smell.
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संबंधित प्रश्न
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.
Write the equation for its preparation mentioning the condition required.
The following are pertaining to the laboratory preparation of hydrogen chloride gas.
State a safety precaution you would take during the preparation of hydrochloric acid.
Write the balanced chemical equation for the laboratory preparation of hydrogen chloride gas.
Draw a labelled diagram for the laboratory preparation of hydrogen chloride gas and answer the following.
- Name the acid used. Why is this particular acid preferred to other acids?
- Give the balanced equation for the reaction.
- Name the drying agent used in drying hydrogen chloride gas.
- Phosphorous pentoxide and calcium oxide are good drying agents, but they cannot be used to dry hydrogen chloride gas. Why?
- Why is the direct absorption of \[\ce{HCl}\] gas in water not feasible?
- What arrangement is done to dissolve \[\ce{HCl}\] gas in the water?
Explain why when the stopper of a bottle full of hydrogen chloride gas is opened, there are fumes in the air.
Explain why a solution of hydrogen chloride in water turns blue litmus red and conducts electricity, while a solution of the same gas in toluene:
- has no effect on litmus, and
- does not conduct electricity.
Explain why thick white fumes are formed when a glass rod dipped in \[\ce{NH4OH}\] is brought near the mouth of a bottle full of \[\ce{HCl}\] gas.
Explain why hydrogen chloride gas is not collected over water.
Write the main difference in hydrogen chloride gas and hydrochloric acid.
Name the gas produced when chlorine water is exposed to sunlight.
Choose the correct answer from the options given below:
Dilute hydrochloric acid solution cannot be concentrated by boiling beyond
Choose the correct answer from the options given below:
Bleaching powder reacts with few drops of concentrated HCl to give
Write the equation for the reaction which takes place in question(a).
Write balanced equation for the reaction between dilute hydrochloric acid and sodium sulphite.
Write the equation for:
The reaction between hydrogen chloride and ammonia.
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.
Answer the following question related to the laboratory preparation of the hydrogen chloride gas:
Why is sodium chloride preferred to other metallic chlorides?
Complete and balance the following reaction, state whether dilute or conc. acid is used.
\[\ce{NH4OH + HCl ->}\]
