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प्रश्न
Differentiate between the terms elements, compounds, and mixtures with suitable examples.
उत्तर
Element – Element is a pure substance
e.g. Potassium
- It is the basic unit of matter and cannot be broken down into two or simpler substances by any means.
- It is mainly classified into metals and non-metals.
Compound – Compound is a pure substance
e.g. Potassium chloride
- It is formed by a combination of two or more elements.
- The elements are combined together in a fixed ratio.
Mixture – Mixture is an impure substance
e.g. Potassium chloride solution
- It is formed by a combination of two or more pure substances.
- The pure substances are mixed together in any ratio.
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संबंधित प्रश्न
Name the main metal present in the following:
Chlorophyll
Define:- Filtration
On what principle are the following methods of separation based? Give one example of a mixture for each of the methods mentioned in which they are used
Sedimentation and decantation
Fill in the blank
_______ are made up of same kind of atoms.
Fill in the blank.
_________ is used when the constituents of a mixture of solids have a difference in their weights.
Differentiate between the following.
solution and suspension
How can you separate iron metal from non-magnetic impurities ?
Name the techniques used to separate a solid from its solution.
Water is a ______.
Write the differences between mixture and compounds.
