Question 4.
Explain the terms.
a. Metallurgy
b. Ores
c. Minerals
d. Gangue
Answer:
(a) The process of extraction of the metals in pure form from their ores is termed as metallurgy.
(b) The minerals or deposits from which the metals can be extracted are called ores.
(c) The naturally occurring compounds of metals along with their impurities is termed as minerals.
(d) Ores contain metal compounds with some of the impurities such as sand and rocky materials and these impurities are called gangue.
