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प्रश्न
Name the element in the compound and give the formula of the following compound:
Green vitriol
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उत्तर
| Element | Element in compound | Formula |
| Green vitriol | Iron, sulphur, oxygen, hydrogen | FeSO4. 7H2O |
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संबंधित प्रश्न
Write down the formulae of sodium sulphide.
Write the chemical formula of the Magnesium chloride.
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Play a game for writing formula.
Example 2: A low-cost model for writing formulae: Take empty blister packs of medicines. Cut them in groups according to the valency of the element, as shown in the figure. Now, you can make formulae by fixing one type of ion into other.
For example:
The formula for sodium sulphate:
2 sodium ions can be fixed on one sulphate ion.
Hence, the formula will be Na2SO4.
Do it yourself:
Now, write the formula of sodium phosphate.
