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प्रश्न
Name the following:
A metallic oxide which reacts with hydrochloric acid to give a coloured solution.
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उत्तर
K2Cr2O7 reacts with hydrochloric acid to give a coloured solution.
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संबंधित प्रश्न
Write balanced chemical equations to show The behavior of H2SO4 as an acid when it reacts with Magnesium
For the preparation of hydrochloric acid in the laboratory:
What arrangement is done to dissolve hydrogen chloride gas in water?
State the composition of aqua regia. State which component is the oxidizing agent in aqua regia.
Write balanced equcation for the following reaction:
Manganese (IV) oxide and concentrated hydrochloric acid.
Give a chemical test to distinguish between the following pair of compounds:
Sodium chloride solution and sodium nitrate solution.
Give a chemical test to distinguish between the following pair of compounds:
Hydrogen chloride gas and hydrogen sulphide gas
Write the balanced equation for the reaction of dilute hydrochloric acid with the following:
Magnesium sulphite
Write an equation for the reactions of hydrochloric acid on manganese (IV) oxide.
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 which of the two - a solution of HCl in water or in toluene is an electrolyte. Explain.
