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प्रश्न
The methods of separating components of a given mixture are based on the
पर्याय
physical properties and state of the components
colour of the components only.
state of the components
none of these
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उत्तर
physical properties and state of the components
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संबंधित प्रश्न
Name the elements present in Washing soda
What is the proportion of element present in the following compound?
CO2
Give the example of a compound containing carbon and oxygen.
Explain the term mixture.
What are compounds? Give two examples.
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.
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
Complete the table
| Compound | Constituent elements |
| Sodium carbonate | Sodium, Carbon. Oxygen |
| Water | |
| Calcium oxide | |
| Sugar | Carbon, Hydrogen, Oxygen |
Name the compounds used in fertilizers.
