Mineral Resources

Question 1

define minerals

Answer 1

minerals are natural substances of organic or inorganic origin with definite physical and chemical properties

Question 2

organic non metallic minerals

Answer 2

fossil fuels/ mineral fuels like coal and petroleum

Question 3

inorganic non metallic minerals

Answer 3

mica, limestone, graphite

Question 4

characteristics of minerals

Answer 4

1. not evenly distributed over space
   2.inverse relationship with quality and quantity
2. exhaustible over time

Question 5

why are minerals exhaustible over time?

Answer 5

they take a long time to develop geologically and cannot be replenished immediately when needed. they have to be conserved and do not have the second crop

Question 6

varieties of iron

Answer 6

1. haematite
2. magnetite
3. limonite

Question 7

haematite

Answer 7

1. red ore
2. 60-70% pure iron

Question 8

haematite found in

Answer 8

Odisha, Jharkand, Chattisgarh, Karnataka, Mahrashtra, Goa

Question 9

magnetite

Answer 9

1. dark brown, blackish
2. black ore
3. more than 70% iron

Question 10

magnetite found in

Answer 10

TN and karnataka l

Question 11

limonite

Answer 11

1. yellow to light brown
2. 35-50% of iron

Question 12

limonite found in

Answer 12

iron stone group in Raniganj coalfield
Garhwal, Mirzapur, Kangra valley

Question 13

uses of iron ore

Answer 13

1. 90% of iron ore is used to make steel(construction, automobiles)
2. powdered iron is used to make magnets, high frequency cores, auto parts, catalysts
3. radioactive iron used in medicine as tracer elements, biochemical, and metallurgical research
4. iron blue is used in paints, printing inks, plastics, cosmetics, artist colours, laundry blue
5. black iron oxide used as pigment in polishing compounds

Question 14

how are iron ore deposits found in india

Answer 14

occur as hill masses and are easily accessible. found near coal, dolomite, limestone, manganese producing areas

Question 15

distribution of iron

Answer 15

1. chattisgarh (Dalli, Bailadilla, Rajhara)
2. Jharkand (Singhbhum, Palamau)
3. Odisha (HAEMATITE- Keonjhar, Mayurbhanj, Sambalpur)
4. Karnataka(MAGNETITE/HAEMATITE- Bababudan hills, Bellary, Hospet)
5. Goa(LIMONITE/SIDERITE)
6. Rajasthan
7. Tamil Nadu
8. Andhra

Question 16

which place in karnataka has most iron ore

Answer 16

Kudremukh- having 1000 million tonnes

Question 17

main iron exporting ports in india

Answer 17

Mormugao, Vishakapatnam

Question 18

manganese

Answer 18

black
hard
natural oxide
important for smelting of iron ore and ferro alloys u

Question 19

uses of manganese

Answer 19

1. used in iron and steel industry
2. manufacture of black enamel in chemical industries
3. alloys
4. dry cell batteries
5. essential for plant growth
6. action of enzymes in humans
7. regulates blood sugar levels and immune system

Question 20

why is manganese used in iron and steel industry

Answer 20

it is used to make steel tough and resistant to rusting. w

Question 21

why is manganese used in chemical, electrical industries

Answer 21

used to make black enamel in chemical industries, and used to make bleaching powder in electrical and glass industries

Question 22

why is Mn needed for plants

Answer 22

reduction of nitrates in green plants and algae

Question 23

why is Mn needed for humans

Answer 23

1. aids enzymes
2. aids metabolism
3. regulate blood sugar levels
4. helps immune system
5. reproduction
6. bone development

Question 24

distribution of manganese

Answer 24

1. Jharkand(Singhbhum, Palamau, Chaibasa)
2. Odisha (Keonjhar, Mayurbhanj, Koraput, Bonai)

Question 25

copper

Answer 25

important non ferrous metal earliest metal used by man occurs as sulphides, oxides, carbonates u

Question 26

uses of copper

Answer 26

1. used for making electric wires because it is a good conductor of electricity, malleable, ductile 2. automobile and defence industries 3. alloyed with iron and nickel to make stainless steel 4. alloyed with zinc to form brass 5. alloyed with tin to make bronze 6. shipbuilding industry

Question 27

distribution of copper

Answer 27

1. Madhya pradesh (Balaghat, Betul, Jabalpur) 2. Rajasthan (Khetri belt in Jhunjunu, Dariba, Ajmer, Bharatpur) 3. Jharkand (Singhbhum)

Question 28

bauxite

Answer 28

oxide of aluminium mainly found in tertiary deposits associated with laterite rocks

Question 29

uses of bauxite

Answer 29

1. aircraft and automobile industry 2. main source of aluminium 3. used in electrical equipment industry 4. makes headlight reflectors and mirrors in telescope.

Question 30

why is bauxite used in aircraft and automobile industry

Answer 30

it is the main source of aluminium, which is lightweight, strong, and rust-resistant

Question 31

largest integrated aluminium plant in India

Answer 31

Renukoot in Uttar Pradesh, getting supply from Amarkantak plateau and Ranchi

Question 32

distribution of Bauxite

Answer 32

1. Madhya Pradesh (Amarkantak plateau, Jabalpur) 2. Odisha (Kalahandi, Sambalpur) 3. Jharkand (Palamau, Ranchi, Dumka, Gumla) 4. Karnataka (Belagavi) 5. TN (Salem, Nilgiri)