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प्रश्न
Explain the term compounds.
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उत्तर
A compound is a pure substance made up of two or more different elements combined chemically in a fixed proportion.
संबंधित प्रश्न
What is the difference between a pure substance and a mixture ?
Define Compounds
Name the elements which form water.
How will you justify that water is a compound?
Name the elements present in Ammonia
Name the elements present in Washing soda
Write the molecular formulae of compound hydrogen sulphide.
Give the example of a compound containing calcium and oxygen.
State two characteristics of water which prove that it is a – compound.
What is the molecular formula of the following compound?
Hydrochloric acid
What is the molecular formula of the following compound?
Sodium chloride
Explain the term mixture.
Write the chemical formula and name the elements present in the following compounds.
- Sodium chloride
- Potassium hydroxide
- Carbon dioxide
- Calcium oxide
- Sulphur dioxide
Mention any four compounds and their uses.
Write any two properties of a compound.
Complete the table
| Compound | Constituent elements |
| Sodium carbonate | Sodium, Carbon. Oxygen |
| Water | |
| Calcium oxide | |
| Sugar | Carbon, Hydrogen, Oxygen |
A compound has a definite ______.
Name the compounds used in fertilizers.
