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प्रश्न
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?
उत्तर
- Hydrochloric acid is prepared by this method.
- The reactants are sodium chloride and Sulphuric acid.
- Empty flask serves as an anti-suction device. If back suction happens, water will collect in it and not reach the generating flask. Otherwise, if water enters the flask, the reaction will stop and may cause an explosion because of the heat produced.
- Cone. \[\ce{H2SO4}\] is the drying agent used. Other drying agents, such as \[\ce{P2O5}\] or quick lime \[\ce{(CaO)}\], cannot be used because they react with hydrogen chloride.
- The purpose of an inverted funnel is to stop back-suction. It also has a large surface area for absorption of \[\ce{HCl}\] gases.
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संबंधित प्रश्न
Write a balanced chemical equation for the action of hydrochloric acid on sodium bicarbonate.
Identify the gas evolved and give the chemical test in the following cases
Dilute hydrochloric acid reacts with iron (II) sulphide.
The following are pertaining to the laboratory preparation of hydrogen chloride gas.
Write the equation for its preparation mentioning the condition required.
State your observation in given case When dilute hydrochloric acid is added to sodium carbonate crystals
Name the acid used for the preparation of hydrogen chloride gas in the laboratory. Why is this particular acid preferred to other acids?
Name the drying agents used in drying hydrogen chloride gas.
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.
Name the gas produced when chlorine water is exposed to sunlight.
How will you prove that the gas prepared is HCI?
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 acid.
Complete and balance the equations:
KMnO4 + HCI → _______+ _______ + _______ + ______ + 8H2O
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.
State the observation for action of dilute hydrochloiric acid or iron (II) sulphate.
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:
State the temperature required in the preparation.
In the laboratory preparation, HCl gas is dried by passing through ______.
Identify the gas evolved in the following reaction:
\[\ce{MnO2}\] reacts with concentrated \[\ce{HCl}\].
