Chemistry
Answer
(a) Ores are those minerals from which metals are extracted commercially at a comparatively lower cost with minimum efforts.
(b) The earthly impurities like soil, mud, sand, silica (SiO2), limestone, rocks, etc. that are mixed with valuable minerals in an ore deposit are called gangue or matrix.
Related Questions
Distinguish between an ore and a metallic compound.
Which metal can be extracted from each one of the following ores:
(a) bauxite
(b) calamine
(c) haematite
Give the principles of:
(a) Hydrolytic method
(b) Froth floatation process
(c) Electromagnetic separation
(a) Name the methods by which concentrated ore is converted to metallic oxide
(b) State three objectives achieved during the roasting of ores.