Interpretation:
The terms mineral and ore are to be defined.
Concept introduction:
Elements occur in nature either in the free state or in the combined state.
A majority of metals occur in the crust of the Earth.
Metals occur in the form of minerals and ores.
Answer to Problem 1QP
Solution: The form in which metals are found naturally in the Earth’s surface, along with impurities, are called minerals. The minerals from which metals can be extracted easily without any economical drawback are called ores.
Explanation of Solution
The form in which metals are found naturally in the Earth’s surface, along with impurities, are called minerals. These have a range of chemical composition.
The minerals from which metals can be extracted easily without any economical drawback are called ores. These have high metal content.
Hence, all ores are minerals but all minerals are not ores.
The substances that comprise metals along with impurities, are minerals; the minerals from which metals can be extracted, are ores.
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Chapter 23 Solutions
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