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प्रश्न
Name the elements present in Marble
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उत्तर
Elements present in Marble:
Calcium, carbon & oxygen
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संबंधित प्रश्न
Write true or false
The constituents of a mixture can only be separated by chemical means.
What is the difference between a pure substance and a mixture ?
The methods of separating components of a given mixture are based on the
State four important characteristics of compounds
What is the proportion of element present in the following compound?
H2O
What is the proportion of element present in the following compound?
CO2
State four differences between compounds and mixtures.
Write the molecular formulae of compound calcium oxide.
Write the molecular formulae of compound carbon monoxide
Write the molecular formulae of compound lead sulphide.
Explain the term compounds.
Give the example of a compound containing carbon and oxygen.
Give the example of a compound containing nitrogen and oxygen.
Mention any four compounds and their uses.
Which of the following are not compounds?
- Chlorine gas
- Potassium chloride
- Iron
- Iron sulphide
- Aluminium
- Iodine
- Carbon
- Carbon monoxide
- Sulphur powder
Higher-Order Thinking questions:
Why is water considered a compound?
When does the pressure of the gas increase?
A compound has a definite ______.
Name the compounds used in fertilizers.
