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प्रश्न
Differentiate between the terms elements, compounds, and mixtures with suitable examples.
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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:
Chocolate wrappers
Give four examples of non-metallic elements.
Why is it named so?
Fill in the blank:
_________ is a process to obtain a very pure form of a solid dissolved in a liquid.
Fill in the blank
A pure substance has definite _______ and constant _________.
Fill in the blank
Use of a __________ to separate the components of a mixture of solids is based on the difference in the size of the components.
Name the substance you will add to speed up sedimentation.
Loading is basically speeding up _____.
Water is a ______.
Write the differences between mixture and compounds.
