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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.
संबंधित प्रश्न
Name the chemical in which gold can be dissolved.
Name the experiment which demonstrates that hydrogen chloride is soluble in water.
Name the gas evolved when dilute hydrochloric acid is added to: Calcium carbonate
Name the gas evolved when dilute hydrochloric acid is added to: Sodium sulphite
Give a balanced equation when dilute hydrochloric acid is added to : Calcium carbonate
Give a balanced equation when dilute hydrochloric acid is added to : Magnesium bicarbonate
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 and balance the following reaction, state whether dilute or cone. acid is used.
\[\ce{NH4OH + HCl->}\]
Complete and balance the following reaction, state whether dilute or conc. acid is used.
\[\ce{NH4OH + HCl ->}\]
Study the flow chart and give balanced equations with conditions for the conversions A, B, C, D and E.
