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प्रश्न
Explain why dry hydrogen chloride gas does not affect a dry strip of blue litmus paper but it turns red in the presence of a drop of water.
उत्तर
A dry strip of blue litmus paper is unaffected by dry \[\ce{HCl}\] gas due to the gas's non-acidic nature. In the presence of a drop of water, \[\ce{HCl}\] gas dissolves and produces hydrochloric acid, which turns blue litmus paper red.
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संबंधित प्रश्न
Write a balanced chemical equation for the action of hydrochloric acid on sodium bicarbonate.
The following are pertaining to the laboratory preparation of hydrogen chloride gas.
Name the drying agent used and justify your choice.
State your observation in given case When dilute hydrochloric acid is added to sodium carbonate crystals
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?
Name the drying agents phosphorus pentoxide and calcium oxide are good drying agent but they cannot be used to dry hydrogen chloride gas. Why?
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.
What are the important precautions?
Explain, why (or give reasons for)
HCI gas does not conduct electricity, but hydrochloric acid conducts electricity.
Mention the reaction condition and give balanced equation to obtain: Cl2 gas from HCI acid.
Mention the reaction condition and give balanced equation to obtain : HCl gas from common salt
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 preparation of hydrogen chloride from sodium chloride and sulphuric acid. State whether the sulphuric acid should be concentrated or dilute.
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.
Answer the following question related to the laboratory preparation of the hydrogen chloride gas:
State the temperature required in the preparation.
Answer the following question related to the laboratory preparation of the hydrogen chloride gas:
Write the chemical equation.
State a relevant reason for the following:
Hydrogen chloride gas cannot be dried over quick lime.
