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प्रश्न
Calcium oxide and phosphorous pentoxide are very good drying agents but they are not used to dry HCI gas. Give reasons for each.
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उत्तर
Calcium oxide and phosphorous pentoxide are very good drying agents but they are not used to dry HCI gas because they react with hydrogen chloride.
Cao +2HCI → CaCl2 +H2O
2P2O5 + 3HCl → POCl3 + 3HPO3
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संबंधित प्रश्न
Give reason for the following:
silver nitrate solution can be used to distinguish HCl from HNO3
Give a balanced equation when dilute hydrochloric acid is added to : Zinc Metal
Give a balanced equation when dilute hydrochloric acid is added to : Calcium carbonate
Give a balanced equation when dilute hydrochloric acid is added to : Sodium sulphite
Give a balanced equation when dilute hydrochloric acid is added to : Potassium bisulphite
- Give only one suitable chemical test to identify the following gases.
- Ammonia
- Sulphur dioxide
- Hydrogen chloride
- Chlorine
- Carbon dioxide
- Oxygen
- Hydrogen
- Select a basic gas mentioned in Q. (a). How is the basic nature suspected?
- Select acidic gases from the gases mentioned in Q. (a). How is the acidic nature suspected?
- The two gases A and B are bleaching agents. A is greenish-yellow and bleaches due to its oxidizing property while B is a colourless gas that bleaches due to reduction. Identify A and B?
- Which gas turn blue cobalt chloride paper light pink? Give one similarity in the test between
- Cl2 and HCl
- SO2 and CO2.
Convert Hydrochloric acid to nascent chlorine.
Complete and balance the following reaction, state whether dilutes or conc. acid is used.
\[\ce{NH4OH + HCl -> }\]
Complete and balance the following reaction, state whether dilute or conc. acid is used.
\[\ce{NH4OH +HCI ->}\]
Study the flow chart and give balanced equations with conditions for the conversions A, B, C, D and E.
