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Question

(a)

Define the following terms- ​
(i) mineral.

(b)
Define the following terms- ​
(ii) ore.

(c)
Define the following terms- ​
(iii) gangue.



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Solution

(a)
Naturally occurring substance, that occurs in earth’s crust, in which metals are present in native or combined states is called mineral.​
​Example: Magnetite, iron pyrite.

(b)
Mineral from which metals can be extracted, conveniently and economically is called ore.​
Example-Haematite, calamine etc.

(c)
The impurities present along with the pure metal in a particular ore, is known as gangue. Impurities can be separated from metal by using simple extraction processes.


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