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प्रश्न
Tabulate a comparative chart – to differentiate between elements, compounds, and mixtures. Differentiate them with reference to properties
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उत्तर
Properties
Elements – Elements have a definite set of properties. Elements classified into metal and non-metals each with its own properties.
Compounds – Compounds have a definite set of properties. Elements of a compound do not retain their original properties.
Mixtures – Mixture not have a definite set of properties. Components of a mixture do retain their original properties.
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.
What is the difference between a pure substance and a mixture ?
Define Compounds
Name the elements present in Sugar
Name the elements present in Washing soda
What is the proportion of element present in the following compound?
CO2
Name two compounds which dissolve in water.
State the information obtained from the formula of a compound.
Write the molecular formulae of compound carbon monoxide
Write the molecular formulae of compound lead sulphide.
Give the example of a compound containing hydrogen and oxygen.
Give the example of a compound containing nitrogen 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
Mention the uses of the following compounds.
- Baking soda
- Bleaching powder
- Quick lime
Higher-Order Thinking questions:
Why is water considered a compound?
A compound has a definite ______.
Name the compounds used in fertilizers.
