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प्रश्न
Tabulate a comparative chart – to differentiate between elements, compounds, and mixtures. Differentiate them with reference to Separation of compound
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उत्तर
Separation of compound
Elements –Elements occur on their own or as compounds and can be separated by chemical and physical methods. Example: Iron, copper.
Compounds – Elements in a compound are chemically combined and can be separated by chemical methods only. Example: Iron Sulphide, copper oxide.
Mixtures – Components in a mixture can be separated by physical methods only.
Example: Iron + sulphur
संबंधित प्रश्न
Select the correct alternative from the choices given for the following statement:
A set of mixture is
The methods of separating components of a given mixture are based on the
State four important characteristics of compounds
What is the proportion of element present in the following compound?
CO2
State four differences between compounds and mixtures.
Write the molecular formulae of compound carbon monoxide
Give the example of a compound containing hydrogen and oxygen.
Give the example of a compound containing carbon and oxygen.
Give the example of a compound containing nitrogen and oxygen.
What is the molecular formula of the following compound?
Hydrochloric acid
What is the molecular formula of the following compound?
Sodium chloride
What is the molecular formula of the following compound?
Methane
Explain the difference between Mixture and compounds.
What are compounds? Give two examples.
Assertion: Oxygen is a compound.
Reason: Oxygen cannot be broken down into anything simpler.
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.
Classify the following as element and compound,
- Silver
- Ammonia
- Water
- Mercury.
Higher-Order Thinking questions:
Why is water considered a compound?
A compound has a definite ______.
