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प्रश्न
Name the elements present in Sugar
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उत्तर
Elements Present in Sugar:
Carbon, hydrogen & oxygen
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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
Handpicking can be used as a separation technique if the particle size of the constituents of the mixture is the same.
State four important characteristics of compounds
What is the proportion of element present in the following compound?
CaO
State the information obtained from the formula of a compound.
Write the molecular formulae of compound lead sulphide.
Explain the term compounds.
Give the example of a compound containing nitrogen and oxygen.
Give the example of a compound containing calcium and oxygen.
Write the chemical formula and name the elements present in the following compounds.
- Sodium chloride
- Potassium hydroxide
- Carbon dioxide
- Calcium oxide
- Sulphur dioxide
Explain the characteristics of compounds
Assertion: Air is a compound.
Reason: Air consists of carbon dioxide.
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.
Sodium chloride is used as table salt and for flavoring and preserving food.
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 |
Higher-Order Thinking questions:
Why is water considered a compound?
A compound has a fixed ______.
