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प्रश्न
Give the example of a compound containing calcium and oxygen.
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उत्तर
Example of Atoms of a different element forming a compound
Calcium oxide, 1 atom of calcium 1 atom of O = CaO
संबंधित प्रश्न
Name the process by which the components of following mixtures can be separated.
- Iron and sulphur
- Ammonium chloride and sand
- Common salt from sea water
- Chaff and grain
- Water and mustard oil
- Sugar and water
Write true or false
A heterogeneous mixture has a uniform composition throughout the mixture.
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 ?
Name the elements which form water.
How will you justify that water is a compound?
Name the elements present in Sugar
Name the elements present in Ammonia
Name the elements present in Washing soda
What is the proportion of element present in the following compound?
H2O
Write the molecular formulae of compound calcium oxide.
What is the molecular formula of the following compound?
Methane
Explain the term mixture.
What are compounds? Give two examples.
What is meant by compound?
Non-metals are usually poor conductors of heat and electricity. They are non-lustrous, non-sonorous, non-malleable and are coloured.
Name a non-metal which is known to form the largest number of compounds.
Which of the following are not compounds?
- Chlorine gas
- Potassium chloride
- Iron
- Iron sulphide
- Aluminium
- Iodine
- Carbon
- Carbon monoxide
- Sulphur powder
Name the compounds used in fertilizers.
