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प्रश्न
Write the formula of the following compound:
Zinc sulphate
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उत्तर
Zinc sulphate - ZnSO4 - `"Zn"^(2+)["SO"_4]^(2-)`
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संबंधित प्रश्न
State the chemical symbols for the following elements :
Sodium, Potassium, Iron, Copper, Mercury, Silver.
The atomicities of ozone, sulphur, phosphorus and argon are respectively :
Name the following compounds. Also write the symbols/formulae of the ions present in them :
- CuSO4
- (NH4)2SO4
- Na2O
- Na2CO3
- CaCl2
Give the formula and valency of:
chromate ………….…….. .
Name the element in the compound and give the formula of the following compound:
Carbonic acid
Name the element in the compound and give the formula of the following compound:
Glauber’s salt
Write the formula of the following compound:
Potassium sulphate
Write the formula of the following compound:
Potassium hydroxide
Write the formula of the following compound:
Sodium carbonate
Write the formula of the following compound:
Sodium plumbite
Write the formula of the following compound:
Sodium sulphate
Write the formula of the following compound:
Zinc chloride
Write the formula of the following compound:
Aluminium carbonate
Write the formula of the following compound:
Aluminium hydroxide
Write the formula of the following compound:
Aluminium oxide
Write the formula of the following compound:
Copper [II] sulphide
Define the term Relative molecular mass. State why indirect methods are utilised to determine the absolute mass of an atom. Explain in brief the indirect method used.
Write the molecular formulae for the following compounds
Copper (II) bromide
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.
