Chemistry
Assertion (A): Minerals are the substances from which metals can be extracted profitably.
Reason (R): Ores are those minerals from which metals are extracted commercially and profitably.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
Metallurgy
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Answer
A is false but R is true.
Explanation — Minerals are the naturally occurring compounds of metals. But not every mineral can be used to extract metals profitably. Hence assertion (A) is false.
Ores are those minerals from which metals are extracted commercially at a comparatively lower cost and with minimum effort. Hence reason (R) is true.
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