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प्रश्न
Write balanced equation for the following reaction:
Copper oxide and dilute hydrochloric acid.
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उत्तर
CuO + 2HCl → CuCl2 + H2O
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संबंधित प्रश्न
Write an equation for the reaction of hydrochloric acid on caustic soda solution.
Explain why dilute hydrochloric acid cannot be concentrated by boiling beyond 22.2%.
How will the action of dilute hydrochloric acid enable you to distinguish between sodium thiosulphate and sodium sulphite?
State the use 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.
Write balanced equcation for the following reaction:
Manganese (IV) oxide and concentrated hydrochloric acid.
Write the balanced equation for the reaction of dilute hydrochloric acid with the following:
Magnesium sulphite
Write observation:
A small piece of zinc is added to dilute hydrochloric acid.
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.
