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प्रश्न
Write the formula of the following compound:
Potassium sulphate
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उत्तर
Potassium sulphate - K2SO4 - `["SO"_4]^(2-)`
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संबंधित प्रश्न
What is meant by the term chemical formula?
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 ?
Name the following compounds. Also write the symbols/formulae of the ions present in them :
- CuSO4
- (NH4)2SO4
- Na2O
- Na2CO3
- CaCl2
Identify the following substance:
A brown gas D with the irritating smell.
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:
Ethane
Write the formula of the following compound:
Sodium nitrate
Write the formula of the following compound:
Sodium bisulphite
Write the formula of the following compound:
Magnesium sulphate
Write the formula of the following compound:
Zinc nitrate
Write the formula of the following compound:
Iron [III] oxide
Write the formula of the following compound:
Iron [III] hydroxide
State of the following formula of a compound is incorrect. Incorrectly write the correct formula.
NaClO
Which of the following represents a correct chemical formula? Name it.
BiPO4
Write the molecular formulae of all the compounds that can be formed by the combination of the following ions
Cu2+, Na+, Fe3+, C1– , `"SO"_4^-2`, `"PO"_4^3-`
Write the steps that are followed to write down the chemical formula of a substance.
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.
