Chapter 5 Class 11 NCERT Geography MCQ | Minerals and Rocks [ UNIT III: LANDFORMS]
1. ------------------ is a naturally occurring organic and inorganic substance, having an orderly atomic structure and a definite chemical composition and physical properties.
a) Rock
b) Mineral
c) Crust
d) Ore
Answer. b) Mineral
2. Which of the following mineral has the largest share in the Earth's crust?
a) Oxygen
b) Silicon
c) Aluminium
d) Iron
Answer. a) Oxygen( 47%)
3. Which of the following mineral has the largest share on the Earth?
a) Oxygen
b) Silicon
c) Aluminium
d) Iron
Answer. d) Iron; (35 %).
4. Which of the following mineral is the second-largest abundance on Earth?
a) Oxygen
b) Silicon
c) Aluminium
d) Iron
Answer. a) Oxygen(30 %).
5. About 98 per cent of the total crust of the earth is composed of eight elements. Which of the mineral is not among the eight minerals?
a) Calcium
b) Sodium
c) Potassium
d) Nickel
Answer. d) Nickel; eight major minerals of earth's crust are Oxygen, Silicon, Aluminium, Iron, and Calcium. Sodium, Potassium, and Magnesium.
6. Which of the following is not a single element mineral?
a) Sulphur
b) Copper
c)Silver
d) Tin
Answer. d) Tin
7. Which of the following is the softest material?
a) Talc
b) Gypsum
c) Calcite
d) Diamond
Answer. a) Talc
8. Tendency to break in given directions producing relatively plane surfaces of minerals is called?
a) Cleavage
b) Fracture
c) Lustre
d) Hardness
Answer. a) Cleavage
9. Relative resistance being scratched to the material is called?
a) Cleavage
b) Fracture
c) Lustre
d) Hardness
Answer. d) Hardness
10. Which of the following is a metallic metal?
a) Lead
b) Sulphur
c) Phosphates
d) Nitrates
Answer. a) Lead is a non-ferrous metal.
>11. --------------do not have the definite composition of mineral constituents.
a) Minerals
b) Rocks
c) Ore
d) Alloy
Answer. b) Rocks
12. Petrology is the science of ------------.
a) Minerals
b) Rocks
c) Ore
d) Alloy
Answer. b) Rocks
13. ----------- rocks solidified from magma and lava.
a) Igneous
b) Sedimentary
c) Metamorphic
d) Both a & b
Answer. a) Igneous
14. ----------rocks are the result of the deposition of fragments of rocks by exogenous processes.
a) Igneous
b) Sedimentary
c) Metamorphic
d) Both c & b
Answer. b) Sedimentary
15. ------------ rocks formed out of existing rocks undergoing recrystallisation.
a) Igneous
b) Sedimentary
c) Metamorphic
d) Both c & b
Answer. c) Metamorphic
16. Which of the following rock is also known as a primary rock?
a) Igneous
b) Sedimentary
c) Metamorphic
d) Both c & b
Answer. a) Igneous
17. Which of the following rock is not an example of Igneous rocks?
a) Granite
b) Gabbro
c) Pegmatite
d) Sandstone
Answer. d) Sandstone is a sedimentary rock.
18. Which of the following is organically formed sedimentary rock?
a) Shale
b) Coal
c) Potash
d) Halite
Answer. b) Coal
19. In the process of metamorphism in some rocks grains or minerals get arranged in layers or lines. Such an arrangement of minerals or grains in metamorphic rocks is called?
a) Foliation
b) Lineation
c) Banding
d) Both a & b
Answer. d) Both a & b
20. Sometimes minerals or materials of different groups are arranged into alternating thin to thick layers appearing in light and dark shades. Such a structure in metamorphic rocks is called?
a) Foliation
b) Lineation
c) Banding
d) Filianated
Answer. c) Banding
21. Which one of the following is the two main constituents of granite?
a) Iron and nickel
b) Iron and silver
c) Silica and aluminium
d) Iron Oxide and potassium
Answer. c) Silica and aluminium
22. Which one of the following is the salient feature of metamorphic rocks?
a) Changeable
b) Quite
c) Crystalline
d) Foliation
Answer. d) Foliation
23. Which one of the following is not a single element mineral?
a) Gold
b) Silver
c) Mica
d) Graphite
Answer. c) Mica
24. Which one of the following is the hardest mineral?
a) Topaz
b) Diamond
c) Quartz
d) Feldspar
Answer. b) Diamond
25. Which one of the following is not a sedimentary rock?
a) Tillite
b) Borax
c) Breccia
d) Marble
Answer. d) Marble is a metamorphic rock.
26.
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