Ans.An Ore Is a Mineral from Which One Or More Metals Can Be Extracted Profitably

F.A.Qs.

Q. 01What is Mineral ?

Ans.Mineral is a naturally occurring, homogeneous, solid substance which has well defined crystal structure, fixed chemical composition and of inorganic origin.

Q. 02What is an Ore?

Ans.An Ore is a mineral from which one or more metals can be extracted profitably.

Q. 03Why minerals are non-renewable resources?

Ans.Because formation of minerals takes millions of and they can’t be recycled.

Q. 04Which mineral-metal is expected to get finished in nature by 2020?

Ans.Silver.

Q. 05List 4 ages recognized on the basis of the usage of minerals?

Ans.1.Stone Age

2.Bronze Age

3.Copper Age

4.Iron Age

Q. 06Which age is related with Industrial Revolution?

Ans.Iron Age.

Q. 07What is Bronze?

Ans.It is an alloy of Copper and Tin. It is brown in colour and resistant to rust. Statues are generally made up of this alloy.

Q. 08How many minerals are found in India in sufficient quantity?

Ans.About 35.

Q. 09List some states of India which are rich in natural resources.

Ans.1. Bihar

2. Jharkhand

3. Rajasthan

4. Chhattisgarh

5.Madhya Pradesh

6.West Bengal

7. Gujarat

8.Goa

9.Karnataka

10. Andhra Pradesh

Q. 10List some important metals found in the form of minerals in Indian Ocean:

Ans.1.Manganese

2.Cobalt

3.Nickel

4.Copper

5.Iron

Q. 11Where are productive Petroleum-fields in India?

Ans.1.Bombay High [Mumbai Offshore]

2.Cambay Basin, Ankleshwar [Gujarat]

3. Digboi, Naharkatiya, Sibsagar, Rudrasagar, Lakwa [Assam]

4.Cauvery Basin

5. Krishna-Godavari Basin

Q. 12Which radioactive mineral is found in the coastal sand of Kerala

Ans.Monazite.

Q. 13Which uranium isotope is used in nuclear power plants to generate electricity?

Ans.Uranium235

Q. 14List three Government of India organizations engaged in mineral investigation?

Ans.1.Geological Survey of India [GSI]

2.Mineral Exploration Corporation Limited [MECL]

3.National Mineral Development Corporation [NMDC]

Q. 15What is Diamond?

Ans.It is polymorph of carbon and hardest precious mineral.

Q. 16Name two minerals which have only one element in their composition.

Ans.1.Diamond

2.Graphite

Q. 17List some of the important uses of minerals.

Ans.1. As liquid and solid fuels

2.In chemical industries

3.In ceramic industries

4.In fertilizer industries

5.In refractory industries

6.In insulation and electrical industries

7.In paint and pigment industries

8.As precious and semi-precious stones

9.As building, construction and decorative stones

10. As abrasive materials.

Q. 18Why we should be judicious while exploitation of minerals?

Ans.So that our future generations can also utilize them.

Q. 19List any three precious metals.

Ans.1.Platinum

2.Gold

3.Silver

Q. 20List any three light metals.

Ans.1.Aluminium

2.Titanium

3.Magnesium

Q. 21Name five iron bearing minerals.

Ans.1.Hematite

2.Magnetite

3.Limonite

4.Goethite

5.Siderite

Q. 22What is Brass?

Ans.It is an alloy of Copper and Zinc.

Q. 23Which alloy is used to prepare Stainless Steel?

Ans.Ferrochrome – an alloy of Iron and Chromium.

Q. 24List five natural resources used as fuel.

Ans.1.Petroleum

2.Coal

3.Natural Gas

4. Atomic minerals

5.Coal Bed Methane

Q. 25Name a non-metallic fibrous mineral used to prepare fire-proof fabrics?

Ans.Asbestos.

Q. 26From which ore, metal Aluminium is extracted?

Ans.Bauxite.

Q. 27What is the chief ore of lead in rocks?

Ans.Galena.

Q. 28Which non-metallic mineral is used to manufacture Glass?

Ans.Quartz.

Q. 29Which non-metallic mineral is used to manufacture Pencils?

Ans.Graphite.

Q. 30Which non-metallic mineral is used to manufacture Plaster of Paris?

Ans.Gypsum.

Q. 31Chemically what is Talcum powder?

Ans.Mineral Talc – a metasilicate of Magnesium.

Q. 32Which salt is called ‘Barium meal’, used to diagnose obstruction in intestine?

Ans.Barium Sulphide.

Q. 33Which mineral is used to manufacture fertilizer and phosphorus?

Ans.Phosphorite.

Q. 34List four minerals used as Gemstones.

Ans.1.Diamond

2.Topaz

3.Beryl

4. Garnet

Q. 35What type of mineral ‘Common Salt’ is?

Ans.Halite [NaCl]. It is also known as ‘Rock Salt’.

Q. 36Which Salt of Aluminium is used to purify water?

Ans.Aluminium Sulphate, popularly known as ‘Alum’.

Q. 37Salts of which metal are used in colouring glass?

Ans.Copper

Q. 38What is Mining?

Ans.Mining is excavation through which earth material can be extracted.

Q. 39List some ill effects of mining.

Ans.1.Different types of Pollutions

2.Loss of Biodiversity

3.Landslide

4. Deforestation

5.Soil erosion

Q. 40Name two occupational diseases common in workers of mines.

Ans.1.Silicosis

2.Pneumoconiosis

Q. 41How mining activities can be controlled?

Ans.1.By the use of non-conventional sources of energy such as Solar energy, Wind and Wave energy, Geothermal energy etc.

2.By conserving natural resources

Q. 42Where is Sariska Tiger Reserve is located?

Ans.Sariska is in the Alwar District of Rajasthan.