Mineral Basics: 17 MCQs with answers
All 17 multiple-choice questions from this kit, free and with no sign-up.
Warm-up · 10 questions
Q1. What is the term used to describe an accumulation of any mineral mixed with other elements, from which the mineral can be extracted commercially?
BeginnerShow answer & explanation
Ore
An ore is an accumulation of a mineral mixed with other elements, in sufficient concentration to make extraction commercially viable.
Q2. Which of the following is the finest iron ore with an iron content up to 70 percent and excellent magnetic qualities?
BeginnerShow answer & explanation
Magnetite
Magnetite is the finest iron ore with up to 70% iron content and excellent magnetic qualities, valuable in the electrical industry.
Q3. In which type of rocks do minerals occur in cracks, crevices, faults, or joints, forming veins and lodes?
BeginnerShow answer & explanation
Igneous and metamorphic rocks
Minerals in igneous and metamorphic rocks occur in cracks, crevices, faults, or joints; smaller occurrences are veins and larger are lodes.
Q4. Which of the following minerals is NOT a ferrous mineral?
BeginnerShow answer & explanation
Copper
Ferrous minerals contain iron; copper is a non-ferrous mineral.
Q5. Which of the following minerals is largely derived from ocean waters?
BeginnerShow answer & explanation
Common salt
Common salt, magnesium, and bromine are largely derived from ocean waters.
Q6. Which of the following is a non-metallic mineral?
BeginnerShow answer & explanation
Mica
Mica is a non-metallic mineral; gold, copper, and lead are metallic minerals.
Q7. Which of the following is an energy mineral?
BeginnerShow answer & explanation
Petroleum
Petroleum is an energy mineral, along with coal and natural gas.
Q8. What is the term for the smaller occurrences of minerals in igneous and metamorphic rocks?
BeginnerShow answer & explanation
Veins
Smaller occurrences are called veins, while larger ones are called lodes.
Q9. Which of the following is a precious mineral?
BeginnerShow answer & explanation
Platinum
Platinum is a precious mineral, along with gold and silver.
Q10. Most rocks consist of a single mineral only.
BeginnerShow answer & explanation
False
Most rocks consist of several minerals in varying proportions; only some, like limestone, consist of a single mineral.
Building up · 7 questions
Q11. Which mineral is formed by the decomposition of surface rocks and removal of soluble constituents, leaving a residual mass?
IntermediateShow answer & explanation
Bauxite
Bauxite is formed by the decomposition of surface rocks and removal of soluble constituents, leaving a residual mass containing the ore.
Q12. Which type of mineral deposit is formed by alluvial deposits in sands of valley floors and the base of hills?
IntermediateShow answer & explanation
Placer deposits
Placer deposits are alluvial deposits in sands of valley floors and the base of hills, containing minerals not corroded by water.
Q13. What is the approximate percentage of total value of metallic mineral production accounted for by ferrous minerals?
IntermediateShow answer & explanation
Three-fourths
Ferrous minerals account for about three-fourths of the total value of metallic mineral production.
Q14. Which Indian state is NOT among the top producers of iron ore in 2018-19?
IntermediateShow answer & explanation
Rajasthan
In 2018-19, almost the entire production (97%) came from Odisha, Chhattisgarh, Karnataka, and Jharkhand; Rajasthan is not a major producer.
Q15. Which sedimentary minerals are formed as a result of evaporation, especially in arid regions?
IntermediateShow answer & explanation
Gypsum, potash salt, and sodium salt
Gypsum, potash salt, and sodium salt are formed by evaporation in arid regions.
Q16. What is the main factor that determines the relative ease with which mineral ores may be mined?
IntermediateShow answer & explanation
Type of formation or structure
The type of formation or structure in which minerals occur determines the relative ease of mining and cost of extraction.
Q17. The vast alluvial plains of north India are rich in economic minerals.
IntermediateShow answer & explanation
False
The vast alluvial plains of north India are almost devoid of economic minerals.
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