Advertisements
Advertisements
प्रश्न
Write the formula of the following compound:
Aluminium sulphate
Advertisements
उत्तर
Aluminium sulphate - Al2[SO4]3 - `"Al"^(3+)["SO"_4]^(2-)`
APPEARS IN
संबंधित प्रश्न
What is meant by the term chemical formula?
What is meant by a chemical formula ? Write the formulae of one element and one compound.
What is the difference between 2H and H2 ?
Write down the formulae for the following compounds :
Magnesium hydroxide
Name the elements water is made of. What are the valencies of these elements ? Work out the chemical
formula for water.
Name the element in the compound and give the formula of the following compound:
Green vitriol
Name the element in the compound and give the formula of the following compound:
Glauber’s salt
Write the formula of the following compound:
Sodium carbonate
Write the formula of the following compound:
Sodium dichromate
Write the formula of the following compound:
Sodium zincate
Write the formula of the following compound:
Sodium bicarbonate
Write the formula of the following compound:
Sodium aluminate
Write the formula of the following compound:
Calcium chloride
Write the formula of the following compound:
Zinc oxide
Write the formula of the following compound:
Aluminium oxide
Write the formula of the following compound:
Iron [III] oxide
State of the following formula of a compound is incorrect. Incorrectly write the correct formula.
NaO
State of the following formula of a compound is incorrect. Incorrectly write the correct formula.
NaClO
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 |

