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प्रश्न
Which of the following represents a correct chemical formula? Name it.
विकल्प
CaCl
BiPO4
NaSO4
NaS
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उत्तर
BiPO4
BiPO4 is the correct formula, its name is bismuth phosphate
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संबंधित प्रश्न
What is the significance of the formula of a substance ?
Correct the following statement:
A molecular formula represents an element.
Name the element in the compound and give the formula of the following compound:
Carbonic acid
Write the formula of the following compound:
Potassium permanganate
Write the formula of the following compound:
Copper [II] nitrate
Write the formula of the following compound:
Iron [III] hydroxide
Write the formula of the following compound:
Silver [II] chloride
State of the following formula of a compound is incorrect. Incorrectly write the correct formula.
BaCl2
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.
