# Define the following terms.

Question.
Define the following terms.

(i) Mineral

(ii) Ore

(iii) Gangue

solution:

(i) Mineral: Most of the elements occur in nature in combined state as minerals. The chemical composition of minerals is fixed.

(ii) Ore : Minerals from which metals can be extracted profitably are known as ores.

(iii) Gangue: The impurities (sand, silt, soil, gravel,etc.) present in the ore are called gangue.