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प्रश्न
Identify the gas evolved and give the chemical test in the following cases
Dilute hydrochloric acid reacts with sodium sulphite.
उत्तर
Sulphur dioxide
Freshly prepared K2Cr2O7 paper changes from orange to green.
APPEARS IN
संबंधित प्रश्न
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?
Write the balanced chemical equation for the laboratory preparation of hydrogen chloride gas.
For the preparation of hydrochloric acid in the laboratory:
Why is the direct absorption of hydrogen chloride gas in water not feasible?
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 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.
Explain why hydrogen chloride gas is not collected over water.
Name the gas produced when chlorine water is exposed to sunlight.
The drying agent used to dry \[\ce{HCl}\] gas is ______.
What are the important precautions?
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.
Mention the reaction condition and give balanced equation to obtain : HCl gas from common salt
Choose the correct answer from the options given below:
Bleaching powder reacts with few drops of concentrated HCl to give
Explain, why the following statement is not correct:
Lead chloride can be prepared by adding dilute HCI to lead sulphate solution.
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.
Answer the following question related to the laboratory preparation of the hydrogen chloride gas:
Write the chemical equation.
Complete and balance the following reaction, state whether dilute or conc. acid is used.
\[\ce{NH4OH + HCl ->}\]
Complete and balance the following reaction, state whether dilute or conc. acid is used.
\[\ce{NH4OH + HCl ->}\]
