1.

Define the terms : (a) mineral (b) ore and (c ) gangue.

Answer»

Solution :(a) Mineral. The compounds of ELEMENTS occurring in earth.s crust which are associated with earthly IMPURITIES are called minerals.
(b) Ore. An ore is a mineral from which METAL can be extracted conveniently and economically.
( c) GANGUE. The earthly impurities such as sand, limestone, rocks ETC. associated with minerals and ores are collectively known as gangue or matrix.


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