Advertisements
Advertisements
प्रश्न
Write the chemical formula for the following elements.
- Hydrogen
- Nitrogen
- Ozone
- Sulphur
Advertisements
उत्तर
| Elements | Formula |
| Hydrogen | H |
| Nitrogen | N |
| Ozone | O3 |
| Sulphur | S |
APPEARS IN
संबंधित प्रश्न
If the valency of carbon is 4 and that of sulphur is 2, work out the formula of the compound formed by the combination of carbon with sulphur. What is the name of this compound ?
Name the element in the compound and give the formula of the following compound:
Ethane
Write the formula of the following compound:
Sodium iodide
Write the formula of the following compound:
Sodium bisulphite
Write the formula of the following compound:
Aluminium oxide
Write the formula of the following compound:
Iron [III] sulphate
Write the formula of the following compound:
Iron [III] sulphide
State of the following formula of a compound is incorrect. Incorrectly write the correct formula.
Mg(SO4)2
Complete the following crossword puzzle (Fig. 3.1) by using the name of the chemical elements. Use the data given in Table.
| Across | Down | ||
| 2 | The element used by Rutherford during his α–scattering experiment | 1 | A white lustrous metal used for making ornaments and which tends to get tarnished black in the presence of moist air |
| 3 | An element which forms rust on exposure to moist air | 4 | Both brass and bronze are alloys of the element |
| 5 | A very reactive non–metal stored under water | 6 | The metal which exists in the liquid state at room temperature |
| 6 | Zinc metal when treated with dilute hydrochloric acid produces a gas of this element which when tested with burning splinter produces a pop sound. | 8 | An element with symbol Pb |
