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प्रश्न
The formula of carbonate of a metal M is M2CO3.
What will be the formula of its phosphate ?
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उत्तर
Formula of phosphate of M:
Crossing the valencies, formula of the phosphate of M is M3PO4.
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संबंधित प्रश्न
Name the following compounds. Also write the symbols/formulae of the ions present in them :
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- (NH4)2SO4
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Write the formula of the following compound:
Aluminium carbonate
Write the formula of the following compound:
Aluminium hydroxide
State of the following formula of a compound is incorrect. Incorrectly write the correct formula.
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Write the molecular formulae for the following compounds
Mercury (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 |
