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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)
उत्तर
MnO2 with conc. HCl gives Cl2 gas where as Cu2O does not.
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संबंधित प्रश्न
Complete and balance the following reaction, state whether dilute or conc. acid is used.
\[\ce{Pb(NO3)2 + HCl ->}\]
Complete the following reaction and balance them.
Ca(HCO3)2 + 2HCl →
Calcium oxide and phosphorous pentoxide are very good drying agents but they are not used to dry HCI gas. Give reasons for each.
Name the gas evolved when dilute hydrochloric acid is added to: Lead (II) sulphide
Name the gas evolved when dilute hydrochloric acid is added to: Potassium bisulphite
How will you identify?
Chloride ion
How will you identify?
Chlorine gas
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 | _________ | _________ |
Convert hydrochloric acid to nascent chlorine.
Complete and balance the following reaction, state whether dilute or cone. acid is used.
\[\ce{NH4OH + HCl->}\]
