Question 1
Asbestos is a fibrous variety of ___________
A. Chrysotile
B. Cristile
C. Christile
D. Christine
View Answer
Answer: Option A
Explanation:
The common asbestos is actually a fibrous variety of mineral Chrysotile-hydrous silicate of magnesium.
Question 2
Chromite is mostly of which origin?
A. Igneous
B. Sedimentary
C. Metamorphic
D. Any origin
View Answer
Answer: Option A
Explanation:
Chromite deposits are mostly of igneous origin being associated with highly basic and ultrabasic rocks like periodotites and dunites.
Question 3
Hutti gold mines are located in which state of India?
A. Karnataka
B. Madhya Pradesh
C. Sikkim
D. Bihar
View Answer
Answer: Option A
Explanation:
The Hutti Gold Mines are also located in Karnataka state in Raichur district where the gold lodes occur along fractures within chlorite schists and greenstones in a highly irregular manner.
Question 4
India is one of the chief producers of which of the following ores?
A. Gold
B. Diamond
C. Manganese
D. Lead-zinc
View Answer
Answer: Option C
Explanation:
India is one of the chief producers of manganese ores in the world occupying 5th to 7th position and competing with Commonwealth of Independent States, South Africa and Brazil. There are three main ore minerals of manganese.
Question 5
State where copper is not mined?
A. Jammu and Kashmir
B. Bihar
C. Maharashtra
D. Rajasthan
View Answer
Answer: Option A
Explanation:
In India, copper is being mined from the states of Bihar, Rajasthan, Madhya Pradesh. Copper ores are also extracted in small volume in Andhra Pradesh, Karnataka and Sikkim.
Question 6
The bauxite in India occurs primarily as ____________
A. Gibbsite
B. Kaolinite
C. Shieldite
D. Karinite
View Answer
Answer: Option A
Explanation:
The bauxite in India occurs primarily as gibbsite Al2O3, its percentage carrying between 40-60 percent and containing silica, iron oxides and titania as important accessory constituents.
Question 7
The best grade chromite in India occurs in which state?
A. Karnataka
B. Rajasthan
C. Orissa
D. Kerala
View Answer
Answer: Option C
Explanation:
The best grade chromite in India occurs in Orissa. Other states where chromite reserves have been found are: Karnataka, Bihar, Maharashtra, Andhra Pradesh.
Question 8
The place in India where Tungsten is extracted is ____________
A. Karnataka
B. Kerala
C. Gujarat
D. Rajasthan
View Answer
Answer: Option D
Explanation:
India produces only small quantities of tungsten in Rajasthan. The source mineral is Wolfram which occurs in Rewat in the Degana area.
Question 9
Where is the Singhbhum copper belt located?
A. Karnataka
B. Madhya Pradesh
C. Sikkim
D. Bihar
View Answer
Answer: Option D
Explanation:
The Singhbhum copper belt of Bihar is made up of epidiorite and quartz-chloride-schist as country rock in which chalcopyrite is the main copper sulphide and quartz, chlorite, biotite and apatite are the gangue minerals. The belt extends for about 15 km.
Question 10
Which is the most common ore of lead?
A. Sphalerite
B. Galena
C. Chromite
D. Bauxite
View Answer
Answer: Option B
Explanation:
The most common ore of lead is Galena-PbS. Similarly, the most common ore of zinc is also sulphide, Sphalerite.
Question 11
Which mineral is also used in chemical industry for manufacture of chromates?
A. Iron
B. Chromite
C. Bauxite
D. Copper
View Answer
Answer: Option B
Explanation:
Chromite is a strategic mineral finding applications in metallurgy of alloy steels, as a source of metal chromium and as a refractory material. It is used in the chemical industry for the manufacture of chromates.