Which one of the following minerals is found in pure form? (1) Iron (2) Copper (3) Bauxite (4) Manganese

Which one of the following minerals is found in pure form? (1) Iron (2) Copper (3) Bauxite (4) Manganese
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(2) Copper Explanation: Copper is one of very few elements that are found in essentially pure form in nature. But the bulk of the copper resource is found in other minerals.
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Which one of the following minerals is found in pure form? (1) Iron (2) Copper (3) Bauxite (4) Manganese

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This group of alumino-silicate minerals is widely used in making electrical insulators (1) Bauxite (2) Chrornite (3) Manganese (4) Mica

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Which of the following minerals is a source of iro w) Bauxite (pron: box-ite) x) Hematite (pron: he-ma-tite) y) Malachite (pron: mal-ah-kite) z) Galena (pron: ga-lee-nah)

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Last Answer : ANSWER: X -- HEMATITE

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Description : Which micro-nutrient is most deficient in Indo-Gangatic alluvium soils? (a) Iron (b) Zinc (c) Copper (d) Manganese

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In which of the following all three are macronutrients? (a) Molybdenum, magnesium, manganese (b) Nitrogen, nickel, phosphorus (c) Boron, zinc, manganese (d) Iron, copper, molybdenum

Description : In which of the following all three are macronutrients? (a) Molybdenum, magnesium, manganese (b) Nitrogen, nickel, phosphorus (c) Boron, zinc, manganese (d) Iron, copper, molybdenum

Last Answer : (d) Iron, copper, molybdenum

Pick up the correct statement from the following: (A) Excess quantities of iron and manganese in water, cause discolouration of clothes (B) Lead and barium salts have toxic effect (C) Higher copper content affects the lungs (D) All the above

Description : Pick up the correct statement from the following: (A) Excess quantities of iron and manganese in water, cause discolouration of clothes (B) Lead and barium salts have toxic effect (C) Higher copper content affects the lungs (D) All the above

Last Answer : (D) All the above

Explain the effects of following chemical elements on iron. i) Copper ii) Phosphorus iii) Manganese

Description : Explain the effects of following chemical elements on iron. i) Copper ii) Phosphorus iii) Manganese

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Which of the following minerals is a source of lead? w) Bauxite x) Hematite y) Malachite z) Galena

Description : Which of the following minerals is a source of lead? w) Bauxite x) Hematite y) Malachite z) Galena

Last Answer : ANSWER: Z -- GALENA

What is the principal ore of aluminium? (1) Dolomite (2) Copper (3) Lignite (4) Bauxite

Description : What is the principal ore of aluminium? (1) Dolomite (2) Copper (3) Lignite (4) Bauxite

Last Answer : (4) Bauxite Explanation: Bacodte is an aluminium ore and is the main source of aluminium. This form of rock consists mostly of the minerals gibbsite, boehmite , and diaspore , in a mixture ... it was first recognised as containing aluminium and named by the French geologist Pierre Berthier in 1821.

Which one of the following pairs is NOT correctly matched? (1) Haematite : Copper (2) Bauxite : Aluminium (3) Monazite : Thorium (4) Pitchblende : Uranium

Description : Which one of the following pairs is NOT correctly matched? (1) Haematite : Copper (2) Bauxite : Aluminium (3) Monazite : Thorium (4) Pitchblende : Uranium

Last Answer : (1) Haematite : Copper Explanation: Haematite is the mineral form of iron oxide (Fe2O3), one of several iron oxides. It is mined as the main ore of iron. Hematite is harder than pure iron, but much more brittle.

Which one of the following pairs is NOT correctly matched? (1) Haematite : Copper (2) Bauxite : Aluminium (3) Monazite : Thorium (4) Pitchblende : Uranium

Description : Which one of the following pairs is NOT correctly matched? (1) Haematite : Copper (2) Bauxite : Aluminium (3) Monazite : Thorium (4) Pitchblende : Uranium

Last Answer : Haematite : Copper

What is the principal ore of aluminium ? (1) Dolomite (2) Copper (3) Lignite (4) Bauxite

Description : What is the principal ore of aluminium ? (1) Dolomite (2) Copper (3) Lignite (4) Bauxite

Last Answer : Bauxite

Stainless steel is usually made by alloying the steel with – (1) copper and nickel (2) copper and chromium (3) chromium and nickel (4) manganese and copper

Description : Stainless steel is usually made by alloying the steel with – (1) copper and nickel (2) copper and chromium (3) chromium and nickel (4) manganese and copper

Last Answer : (3) chromium and nickel Explanation: In metallurgy, stainless steel is defined as a steel alloy with a minimum of 10.5 per cent to 11 per cent chromium content by mass. There are ... virtually nonmagnetic and less brittle at low temperatures. For greater hardness and strength, more carbon is added.

Manganite is an ore/mineral of ______. (1) Beryllium (2) Chromium (3) Manganese (4) Copper

Description : Manganite is an ore/mineral of ______. (1) Beryllium (2) Chromium (3) Manganese (4) Copper

Last Answer : (3) Manganese Explanation: Manganite is an ore mineral of manganese. As a manganese ore, it ranks after pyrolusite and romanechite.

Stainless steel is usually made by alloying the steel with (1) copper and nickel (2) copper and chromium (3) chromium and nickel (4) manganese and copper

Description : Stainless steel is usually made by alloying the steel with (1) copper and nickel (2) copper and chromium (3) chromium and nickel (4) manganese and copper

Last Answer : chromium and nickel 

Match the following: Minerals Areas A. Gold 1. Khetri B. Coal 2. Kolar C. Copper 3. Kudremukh D. Iron 4. Jharia A B C D (a) 2 4 1 3 (b) 1 2 3 4 (c) 4 3 2 1 (d) 3 4 1 2

Description : Match the following: Minerals Areas A. Gold 1. Khetri B. Coal 2. Kolar C. Copper 3. Kudremukh D. Iron 4. Jharia A B C D (a) 2 4 1 3 (b) 1 2 3 4 (c) 4 3 2 1 (d) 3 4 1 2

Last Answer : Ans: (a)

The commonest form of iron & manganese found in ground water as pollutant is in the form of their (A) Carbonates (B) Bi-carbonates (C) Chlorides (D) Sulphides

Description : The commonest form of iron & manganese found in ground water as pollutant is in the form of their (A) Carbonates (B) Bi-carbonates (C) Chlorides (D) Sulphides

Last Answer : (B) Bi-carbonates

Iron is extracted from - (1) Cinnabar (2) Haematite (3) Bauxite (4) Dolomite

Description : Iron is extracted from - (1) Cinnabar (2) Haematite (3) Bauxite (4) Dolomite

Last Answer : (2) Haematite Explanation: Haematite is mined as the main ore of iron. It is harder than pure iron, but much more brittle. It is coloured black to steel or silver-gray, brown to reddish brown, or red.

Which of the following is an iron ore? (1) Bauxite (2) Magnetite (3) Lignite (4) Nitrite

Description : Which of the following is an iron ore? (1) Bauxite (2) Magnetite (3) Lignite (4) Nitrite

Last Answer : (2) Magnetite Explanation: Magnetite is a 'mineral, one of the two common naturally occurring oxides of Iron. It is the most magnetic of all the naturally occurring minerals on Earth.

Bauxite is used as raw material by which industry? (1) Aluminium (2) Iron (3) Steel (4) Gold

Description : Bauxite is used as raw material by which industry? (1) Aluminium (2) Iron (3) Steel (4) Gold

Last Answer : (1) Aluminium Explanation: Bauxite is the principal ore of aluminium. Bauxite is not a mineral. It is a rock formed from a laterite soil that has been severely leached of silica and other soluble materials in a wet tropical or subtropical climate.

Bauxite is used as raw material by which industry? (1) Aluminium (2) Iron (3) Steel (4) Gold

Description : Bauxite is used as raw material by which industry? (1) Aluminium (2) Iron (3) Steel (4) Gold

Last Answer : (1) Aluminium Explanation: Bauxite is the principal ore of aluminium. Bauxite is not a mineral. It is a rock formed from a laterite soil that has been severely leached of silica and ... materials in a wet tropical or subtropical climate. Aluminium is extracted from bauxite using the Bayer process.

Bauxite is an alloy of which of the following metals? (1) Aluminium (2) Silver (3) Tin (4) Iron

Description : Bauxite is an alloy of which of the following metals? (1) Aluminium (2) Silver (3) Tin (4) Iron

Last Answer : (1) Aluminium Explanation: Bauxite is an aluminium ore and is the main source of aluminium. This form of rock consists mostly of the minerals gibbsite Al(OH)3, boehmite, and diaspore, in a ... the two iron oxides goethite and hematite, the clay mineral kaolinite, and small amounts of anatase TiO2.

Bauxite is used as raw material by which industry ? (1) Aluminium (2) Iron (3) Steel (4) Gold

Description : Bauxite is used as raw material by which industry ? (1) Aluminium (2) Iron (3) Steel (4) Gold 

Last Answer : Aluminium

Iron is extracted from (1) Cinnabar (2) Haematite (3) Bauxite (4) Dolomite

Description : Iron is extracted from (1) Cinnabar (2) Haematite (3) Bauxite (4) Dolomite

Last Answer : Haematite

Which of the following is an iron ore ? (1) Bauxite (2) Magnetite (3) Lignite (4) Nitrite

Description : Which of the following is an iron ore ? (1) Bauxite (2) Magnetite (3) Lignite (4) Nitrite

Last Answer : Magnetite

Bauxite is an alloy of which of the following metals ? (1) Aluminium (2) Silver (3) Tin (4) Iron

Description : Bauxite is an alloy of which of the following metals ? (1) Aluminium (2) Silver (3) Tin (4) Iron 

Last Answer : Aluminium