Chapter 3: Metals and Non-metals

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Q
Metals and Non-metals

Question:

Define the following terms:

(i) Mineral

(ii) Ore

(iii) Gangue

Answer:

(i)- The elements or compounds, which occur naturally in the earth’s crust, are known as minerals.

(ii)- Ore is defined as the natural rock or mineral present in the Earth’s crust which contains one or more valuable metals, that are extracted commercially and economically.

(iii)- Gangue is defined as unwanted impurities like sand, limestone, mica, etc, that are present in an ore.


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