Question

Class X Sciences
[papers from previous years]

Explain the following terms by giving one example of each.

(i) Mineral
(ii) Ore
(iii) Gangue

Answer 1

(i)The elements or compounds of the metals which occur in nature in the earth crust are called minerals.
example:- aluminium

(ii)The minerals from which the metals are extracted without economical loss are called ore.
example:- bauxite

(iii)The impurities like clay are called gangue.
example:- sand and soil.

Answer 2

Explain the following terms by giving one example of each.

(i) Mineral

(ii) Ore

(iii) Gangue

Answer=>

1) Mineral => naturally occuring chemical substances in te earths crust obtainable by mining

The best example of mineral can be aluminium

2) ore =>> ores are minerals from which the metals are economiically and profitabily extracted

Example can be bauxite

All ores are minerals but all minerals are not ores

3) Gangue => the earthly matter or unwanted materials present in the ore

Example can be mud , soil etc