Advertisements
Advertisements
प्रश्न
Write the chemical formula of the Magnesium chloride.
Advertisements
उत्तर
| Element Name | Magnesium |
| Element symbol | Mg |
| Charge | +2 |
| Valency | 1 Mg |
Hence formula: MgCl2

APPEARS IN
संबंधित प्रश्न
Write down the formulae of magnesium hydroxide.
An element X has a valency of 4 whereas another element Y has a valency of 1. What will be the formula of the compound formed between X and Y ?
An element B shows valencies of 4 and 6. Write the formulae of its two oxides.
Give the formula and valency of:
cupric ………………… .
Name the element in the compound and give the formula of the following compound:
Ethane
Write the formula of the following compound:
Potassium bicarbonate
Write the formula of the following compound:
Lead [II] sulphate
Write the formula of the following compound:
Silver [II] chloride
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 |

