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प्रश्न
Define: Compounds
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उत्तर
Compounds : A compound is a pure substance formed by the chemical combination of two or more elements in a fixed ratio by mass.
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संबंधित प्रश्न
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
Magnetic separation
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Give a reason why elements are tabulated in a table called the ‘Periodic table’.
Give the symbol of the following element:
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State the type of element for the following:
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State the variable valency of the following metal.
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write symbol with the variable valency
Write the symbols for the following elements.
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- Gold
- Calcium
- Cadmium
- Iron
