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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
Write true or false
A heterogeneous mixture has a uniform composition throughout the mixture.
State four important characteristics of compounds
Name the elements present in Washing soda
What is the proportion of element present in the following compound?
CO2
What is the proportion of element present in the following compound?
NO2
Name two compounds which dissolve in water.
Write the molecular formulae of compound lead sulphide.
Give the example of a compound containing hydrogen and oxygen.
Select the correct answer from the choice given below.
A compound
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Explain the term mixture.
Match the following.
| Iron | For making wires |
| Copper | Sewing needle |
| Tungsten | As a fuel for ignition in rocket |
| Boron | Making the filament of a bulb |
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Mention the uses of the following compounds.
- Baking soda
- Bleaching powder
- Quick lime
State whether true or false. If false, correct the statement.
Aspirin is composed of 60% Carbon, 4.5% Hydrogen and 35.5% Oxygen by mass. Aspirin is a mixture.
What is meant by compound?
Sodium chloride is used as table salt and for flavoring and preserving food.
A compound has a definite ______.
