Advertisements
Advertisements
प्रश्न
Name the chemical in which gold can be dissolved.
Advertisements
उत्तर
Aqua regia
संबंधित प्रश्न
Name the experiment which demonstrates that hydrogen chloride is soluble in water.
Name the following: A greenish yellow gas.
Give a balanced equation when dilute hydrochloric acid is added to : Zinc Metal
Name the gas evolved when dilute hydrochloric acid is added to: Sodium sulphite
Give a balanced equation when dilute hydrochloric acid is added to : Sodium sulphite
Give a balanced equation when dilute hydrochloric acid is added to : Lead (II) sulphide
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 | _________ | _________ |
- Give only one suitable chemical test to identify the following gases.
- Ammonia
- Sulphur dioxide
- Hydrogen chloride
- Chlorine
- Carbon dioxide
- Oxygen
- Hydrogen
- Select a basic gas mentioned in Q. (a). How is the basic nature suspected?
- Select acidic gases from the gases mentioned in Q. (a). How is the acidic nature suspected?
- The two gases A and B are bleaching agents. A is greenish-yellow and bleaches due to its oxidizing property while B is a colourless gas that bleaches due to reduction. Identify A and B?
- Which gas turn blue cobalt chloride paper light pink? Give one similarity in the test between
- Cl2 and HCl
- SO2 and CO2.
Complete and balance the following reaction, state whether dilute or conc. acid is used.
\[\ce{NH4OH +HCI ->}\]
