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प्रश्न
Distinguish between the following pairs of compounds using the reagent given in the bracket.
Mangenese dioxide and copper (II) oxide. (using concentrated HCl)
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उत्तर
MnO2 with conc. HCl gives Cl2 gas where as Cu2O does not.
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संबंधित प्रश्न
Name a chloride which is solube in excess of ammonium hydroxide
Complete and balance the following reaction, state whether dilute or conc. acid is used.
\[\ce{Pb3O4 + HCl ->}\]
Name the following :
Acid present in the stomach of mammals.
Name the following:
Acid used to extract glue from bones.
Give a balanced equation when dilute hydrochloric acid is added to : Calcium carbonate
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 | _________ | _________ |
How will you prove that hydrochloric acid contains
- hydrogen
- chlorine?
Write equations for the reactions.
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.
NH4OH + HCl ⟶
Study the flow chart and give balanced equations with conditions for the conversions A, B, C, D and E.
