Chapter-Minerals and Rocks

Important MCQ-Based Questions for class 11 Geography chapter-Minerals and Rocks

This page consists of Important MCQ questions from chapter-Minerals and Rocks uploaded as per the CBSE syllabus and consists of a detailed explanation. Questions are prepared from the entire chapter-Minerals and Rocks to give you effective revision. 

Find below MCQ-Based Questions for class 11 Geography chapter-Minerals and Rocks

Important MCQ-based questions Geography class 11 chapter-Minerals and Rocks Set-A

Geography - MCQ on Minerals and Rocks

Class XI

Q.1. Half of the earths crust is composed of …….

a) Granite

b) Feldspar

c) Iron

d) Sipca

Answer:

(b) Feldspar

Q.2. It is white or colourless and used in radio and radar.

a) Granite

b) Quartz

c) Sandstone

d) Marble

Answer:

(b) Quartz

Q.3. ……… forms 10 per cent of the earths crust.

a) Amphibole

b) Pyroxene

c) Mica

d) Opvine

Answer:

(b)Pyroxene

Q.4. It is commonly found in igneous rocks and metamorphic rocks it is used in electrical instruments.

a) Opvine

b) Mica

c) Magnesium

d) Aluminium

Answer:

(b) Mica

Q.5. It is used in jewellery, it is a greenish crystal often found in basaltic rocks.

a) Lead

b) Iron

c) Opvine

d) Zinc

Answer:

(c) Opvine

Q.6. Iron is a:

a) Ferrous metal

b) Non –ferrous metal

c) Precious metal

d) None.

Answer:

(a) Ferrous metal

Q.7. Igneous rocks are:

a) Primary rocks

b) Secondary rocks

c) Tertiary rocks

d) Mineral rocks

Answer:

(a) Primary rocks

Explanation: - They are called primary because these rocks were formed in the initial stages of the evolution of the earth.

Q.8.Which one of the following is not an igneous rock:

a) Granite

b) Quartz

c) Feldspar

d) Slate

Answer:

(d) Slate

Q.9. Which rock could be formed by the deposits of animal shells and skeletons.

a) Sandstone

b) pmestone

c) Quartz

d) Basalt

Answer:

(b) pmestone

Q.10. The most abundant constituent of earths crust is:

a) Igneous rocks

b) Sedimentary rocks

c) Metamorphic rocks

d) Granite

Answer:

(a) Igneous rocks

Q.11.Magma that reaches on the surface of the earth and then sopdifies is known as:

a)Granite

b)Lava

c)Quartz

d)Sipcates

Answer:

(b) Lava

Q.12. The formation of metamorphic rocks takes place:

a) Always in the pquid state

b) Always in the sopd state

c) Sometimes in the pquid and sometimes in the sopd

d) Always by chemical recombination process

Answer:

(b) Always in the sopd state

Explanation: - Due to excessive pressure or high temperature the properties of rocks get transformed.

Q.13. The number of economic minerals associated with sedimentary rocks is:

a) More than associated with igneous rocks

b) Less than that associate with igneous rocks

c) Same as that of igneous rocks

d) Unknown

Answer:

(b)Less than that associate with igneous rocks

Q.14. gypsum, saltpetre, pyrite and haematite all can be found in

a) Sedimentary rocks

b) Igneous rocks

c) Metamorphic rocks

d) All

Answer:

(a) Sedimentary rocks

Q.15. The parent material of soils are derived from:

a) Igneous rocks

b) Metamorphic rocks

c) Sedimentary rocks

d) Biological action

Answer:

(c) Sedimentary rocks

Q.16. Petrology is a science of:

a) Minerals

b) Rocks

c) Soil

d) None

Answer:

(b) Rocks

Q.17. Igneous rocks are:

a) Primary rocks

b) Secondary rocks

c) Tertiary rocks

d) soft rocks.

Answer:

(a) primary rocks

Q.18.Which one of the following are the two main constituents of granite?

a) Iron and nickel

b) Iron and silver

c) Sipca and aluminium

d) Iron oxide and potassium

Answer:

(d) Iron oxide and potassium

Q.19. Which one of the following is the sapent feature of metamorphic rocks

a) Changeable

b) Crystalpne

c) Quite

d) Fopation

Answer:

(b) Crystalpne

Q.20. Which one of the following is not a single element mineral?

a) Gold

b) Silver

c) Mica

d) Graphite

Answer:

(c) Mica

Q.21. Which one of the following is the hardest mineral.

a) Topaz

b) Quartz

c) Diamond

d) Feldspar

Answer:

(c) Diamond

Q.22.Which one of the following is not a sedimentary rock

a) Tilpte

b) Breccia

c) Borax

d) Marble

Answer:

(d) marble

Explanation: - Marble is metamorphic rock which is a metamorphosed form of pmestone.

Q.23.sedimentary rocks are finally and ultimately derived from the:

a) weathering of igneous rocks

b) weathering of metamorphic rocks.

c) marine deposits

d) action of earth movements.

Answer:

(c) Marine deposits.

Q.24.Fractures in rocks can be caused by

a) Removal of pressure leading to expansion of rocks.

b) Crystal growth and frost heaving.

c) Repeated thermal expansion and contraction.

d) All the above.

Answer:

(d) All the above.

Q.25.Which of the statement is not correct.

a) The sea floor is older than the land.

b) The first rocks were formed as a result of the coopng of the molten matter.

c) Sedimentary rocks are also called aqueous rocks because they were formed by the agency of water.

d) Stalactites and Stalagmites are the deposits of pme found in the caves.

Answer:

(d) Stalactites and Stalagmites are the deposits of pme found in the caves.

Exp. Stalactites and Stalagmites are the deposits of calcium carbonate.

Important MCQ-based questions Geography class 11 chapter-Minerals and Rocks Set-B

Q.1. What is the basic source of minerals?

a. Rocks

b. Hot magma

c. Alluvial deposits

d. None of the above

Answer:

(b)

Explanation. When magma cools, crystals of minerals appear and they sopdify to form rocks.

Q.2. Which of the following is a mineral:

a. Pyroxene

b. Opvine

c. Feldspar

d. All of the above

Answer:

(d)

Explanation. There are about 2000 minerals that have been identified.

Q.3. Which of the following are the elements of Amphibole:

a. calcium

b. sipca

c. iron

d. All of the above

Answer:

(d)

Explanation. They form 7% of the earth’s crust.