4. Explain the terms.
a. Metallurgy
b. Ores
c. Minerals
d. Gangue.
Answers
Answer:
Ore: If minerals contain a very high percentage of a particular metal and the metal can be profitably extracted from it. These minerals are called ores. ... Gangue: Ores mined from the earth are usually contaminated with large amounts of impurities such as soil, sand, etc., called gangue.
Explanation:
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Answer:
a . Metallurgy
The various processes involved in the extraction of metals from its ores and refining is called metallurgy. The major steps involved for the extraction of a metal from its ore are :
(i) Concentration of ores (or enrichment of ore)
(ii) Conversion of concentrated ore into metal
(iii) Refining (purification) of impure metal
b. Ores
Those minerals from which a metals can be extracted convenietly and profitably.
c. Minerals
The naturally occuring compounds of metals along with other impurities are known as minerals.
Examples : Rocks are composed of mixtures of minerals Talc and granite are minerals.
d. Gangue
Gangue is the unwanted impurities like rock material, dust, soil, earthy particles, limestone, mica, etc. present in an ore.
Explanation:
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