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प्रश्न
What would happen if
Calcium oxide is used to dry hydrogen chloride.
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उत्तर
If calcium oxide is used to dry HCI, then it will react with HCI gas and result in the formation of calcium chloride and water.
CaO + 2HCl → CaCl2 + H2O
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संबंधित प्रश्न
Give a chemical test to distinguish between the given pairs of chemicals:
Sodium chloride solution and Sodium nitrate solution
Write an equation for the reaction of hydrochloric acid on magnesium foil.
Write an equation for the reaction of aqueous hydrochloric acid on lead nitrate solution.
MnO2, PbO2 and red lead react with conc. HCl acid to liberate Cl2.
What is the common property being shown by these metal oxides?
State the composition of aqua regia. State which component is the oxidizing agent in aqua regia.
What is the function of HCI in preparation of aqua-regia?
A solution of hydrogen chloride in water is prepared. The following substances are added to separate portions of the solution:
| S. No. | Substances added | Gas evolved | Odour |
| 1. | Calcium carbonate | _________ | _________ |
| 2. | Magnesium ribbon | _________ | _________ |
| 3. | Manganese (IV) oxide with heating | _________ | _________ |
| 4. | Sodium sulphide | _________ | _________ |
Complete the table by writing the gas evolved in each case and its odour.
State your observation when:
Decomposition of bicarbonates by dil. H2SO4
2NaHCO3 + H2SO4 → Na2SO4 + 2H2O + 2CO2
2KHCO3 + H2SO4 → K2SO4 + 2H2O + 2CO2
State which of the two - a solution of HCl in water or in toluene is an electrolyte. Explain.
State which of the two - a solution of HCl in water or in toluene is an electrolyte. Explain.
