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प्रश्न
Define the terms elements, compounds & mixtures with a view to show their basic difference.
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उत्तर
Element is a pure substance.
- 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, non-metals, metalloids, and noble gases.
The compound is a pure substance.
- It is formed by a combination of two or more elements.
- The elements are combined together in a fixed ratio.
- It can be broken down into its elements by chemical means.
The mixture is an impure substance.
- It is formed by a combination of two or more elements, compounds, or both.
- The substances are mechanically mixed together in any ratio.
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संबंधित प्रश्न
Define: Compounds
State four differences between compounds and mixtures.
Name: a Metal Which is brittle
Name: Three different forms of carbon
Name: Two substances used to make jewellery.
Write the names of elements from the following symbol:
Xe
Write the names of elements from the following symbol:
Cu
Write the names of elements from the following symbol:
Ir
Write an answer to the following question in your own words.
Which elements (metals and non-metals), compounds and mixtures do we use in our day-to-day life?
Give a reason for the following statement :
Brass & bronze are examples of mixtures, while copper sulphate & lead nitrate are examples of compounds.
