What is mainly obtained from bauxite? (a) Copper (b) Aluminium (c) Iron (d) Gold

What is mainly obtained from bauxite? (a) Copper (b) Aluminium (c) Iron (d) Gold
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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 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

Bauxite is an ore of-----? A. copper B. zinc C. aluminium (Answer) D. iron

Description : Bauxite is an ore of-----? A. copper B. zinc C. aluminium (Answer) D. iron

Last Answer : C. aluminium (Answer)

How are deposits of bauxite formed and aluminium obtained? -SST 10th

Description : How are deposits of bauxite formed and aluminium obtained? -SST 10th

Last Answer : (i) Bauxite deposits are formed due to decomposition of wide variety of rocks rich in aluminium silicates. Ores containing aluminium are obtained from bauxite which is a clay-like substance ... Orissa. Panchpatmali deposits in Koraput district are the most important bauxite deposits in the state.

Bauxite is the ore of (a) Aluminium (b) Copper (c) Zinc (d) Mica

Description : Bauxite is the ore of (a) Aluminium (b) Copper (c) Zinc (d) Mica

Last Answer : Ans: (a)

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

Babbitt metal (used for making bearings) comprises of (A) Mainly tin (85%) and lead (B) Saw dust and iron dust mixture (C) Zinc and aluminium (D) Copper and aluminium

Description : Babbitt metal (used for making bearings) comprises of (A) Mainly tin (85%) and lead (B) Saw dust and iron dust mixture (C) Zinc and aluminium (D) Copper and aluminium

Last Answer : (A) Mainly tin (85%) and lead

Why is extraction of aluminium not commercially viable by using reducing agents like coke? OR Coke is used in the extraction of iron but not in the extraction of aluminium. Why? OR Aluminium cannot be extracted by heating bauxite and coke. Why?

Description : Why is extraction of aluminium not commercially viable by using reducing agents like coke? OR Coke is used in the extraction of iron but not in the extraction of aluminium. Why? OR Aluminium cannot be extracted by heating bauxite and coke. Why?

Last Answer : Oxygen of aluminium oxide cannot be easily taken away by reducing agents like coke.

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 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

What is Bailadila famous for? (a) Bauxite (b) Iron ore (c) Copper (d) Coal

Description : What is Bailadila famous for? (a) Bauxite (b) Iron ore (c) Copper (d) Coal

Last Answer : Ans: (b)

The Vindhyan system of rocks is important for the production of [CDS 2011] (a) precious stones and building materials (b) iron ore and manganese (c) bauxite and mica (d) copper and uranium

Description : The Vindhyan system of rocks is important for the production of [CDS 2011] (a) precious stones and building materials (b) iron ore and manganese (c) bauxite and mica (d) copper and uranium

Last Answer : Ans: (a)

India has the monopoly in the International market in the supply of– (1) Iron (2) Mica (3) Bauxite (4) Copper

Description : India has the monopoly in the International market in the supply of– (1) Iron (2) Mica (3) Bauxite (4) Copper

Last Answer : (2) Mica Explanation: India produces approximate 90 % of the world's mica. It is an indispensable component of the electrical industry. India accounts for 60 % of mica embarking in international trade.

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

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

Last Answer : (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.

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

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

Last Answer : Copper

Which one of the following metals occurs in nature in free state? (1) Gold (2) Sodium (3) Aluminium (4) Copper

Description : Which one of the following metals occurs in nature in free state? (1) Gold (2) Sodium (3) Aluminium (4) Copper

Last Answer : (1) Gold Explanation: Gold is found on every continent on Earth, except Antarctica. The largest amounts of gold on Earth are found in the oceans - but it is not yet feasible to extract gold from seawater.

Pick out the wrong statement. (A) Pure rubber is as useless as pure gold as a material of construction (B) Thermal conductivity of aluminium is higher than that of copper; henceit is increasingly used for utensil making(C) Copper has poor weldability(D) Reinforced plastics are made from both thermoplastic as well asthermosetting plastics

Description : Pick out the wrong statement. (A) Pure rubber is as useless as pure gold as a material of construction (B) Thermal conductivity of aluminium is higher than that of copper; henceit is ... has poor weldability (D) Reinforced plastics are made from both thermoplastic as well as thermosetting plastics

Last Answer : (B) Thermal conductivity of aluminium is higher than that of copper; henceit is increasingly used for utensil making

Which of the following materials does not form adherent oxide film on surface? (A) Copper (B) Nickel (C) Aluminium (D) Gold & silver

Description : Which of the following materials does not form adherent oxide film on surface? (A) Copper (B) Nickel (C) Aluminium (D) Gold & silver

Last Answer : (D) Gold & silver

Which metal among the following melts below 30^0 C. a) copper b)aluminium c)gold d)caesium

Description : Which metal among the following melts below 30^0 C. a) copper b)aluminium c)gold d)caesium

Last Answer : d)caesium

Which of the following material has the highest melting point (A) Copper. (B) Aluminium. (C) Tungsten. (D) Gold.

Description : Which of the following material has the highest melting point (A) Copper. (B) Aluminium. (C) Tungsten. (D) Gold.

Last Answer : (C) Tungsten.

The most important ore of aluminium is (a) Bauxite (b) Magnetite (c) Haematite (d) Monazite

Description : The most important ore of aluminium is (a) Bauxite (b) Magnetite (c) Haematite (d) Monazite

Last Answer : Ans:(a)

Aluminium is extracted from bauxite (a) By reduction with carbon (b) By reduction with Mg (c) By reduction with CO (d) By electrolysis in molten cryolite

Description : Aluminium is extracted from bauxite (a) By reduction with carbon (b) By reduction with Mg (c) By reduction with CO (d) By electrolysis in molten cryolite

Last Answer : Ans:(d)

Give two uses of bauxite besides manufacture of aluminium . -SST 10th

Description : Give two uses of bauxite besides manufacture of aluminium . -SST 10th

Last Answer : (i) Used in place of iron sheets where durability is not required, (ii) In tanning leather and refining mineral oil.

Which of the following techniques is used in the manufacture of aluminium from bauxite

Description : Which of the following techniques is used in the manufacture of aluminium from bauxite

Last Answer : Which of the following techniques is used in the manufacture of aluminium from bauxite A. ... C. Electrolytic reduction D. Reduction with iron

Critical criteria for the location of an aluminium plant in India are the availability of bauxite and: [CDS 1999] (a) coal (b) electricity (c) labour (d) ready market

Description : Critical criteria for the location of an aluminium plant in India are the availability of bauxite and: [CDS 1999] (a) coal (b) electricity (c) labour (d) ready market

Last Answer : Ans: (b)

Which mineral is the ore of aluminium? (1) Haematite (2) Bauxite (3) Magnetite (4) Siderite

Description : Which mineral is the ore of aluminium? (1) Haematite (2) Bauxite (3) Magnetite (4) Siderite

Last Answer : (2) Bauxite Explanation: Bauxite is an aluminium ore and is the main source of aluminium. Approximately 70% to 80% of the world's dry bauxite production is processed first into alumina, and then into aluminium by electrolysis.

The ore of Aluminium is - (1) Fluorspar (2) Bauxite (3) Chalco pyrites (4) Hematite

Description : The ore of Aluminium is - (1) Fluorspar (2) Bauxite (3) Chalco pyrites (4) Hematite

Last Answer : (2) Bauxite Explanation: Bauxite, an aluminium ore, is the world's main source of aluminium. Bauxite is priinarily comprised of aluminum oxide compounds (alumina), silica, iron oxides and titanium dioxide. It is refined through the Bayer chemical process into alumina.

The important ore of aluminium is – (1) bauxite (2) cryolite (3) fluorspar (4) haematite

Description : The important ore of aluminium is – (1) bauxite (2) cryolite (3) fluorspar (4) haematite

Last Answer : (1) bauxite Explanation: Bauxite 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 recognized as containing aluminium and named by the French geologist Pierre Berthier in 1821.

Aluminium is extracted from (A) Chalcocite (B) Bauxite (C) Galena (D) None of these

Description : Aluminium is extracted from (A) Chalcocite (B) Bauxite (C) Galena (D) None of these

Last Answer : (B) Bauxite

The ore of Aluminium is (1) Fluorspar (2) Bauxite (3) Chalco pyrites (4) Hematite

Description : The ore of Aluminium is (1) Fluorspar (2) Bauxite (3) Chalco pyrites (4) Hematite

Last Answer : Bauxite

Which mineral is the ore of aluminium ? (1) Haematite (2) Bauxite (3) Magnetite (4) Siderite

Description : Which mineral is the ore of aluminium ? (1) Haematite (2) Bauxite (3) Magnetite (4) Siderite

Last Answer : Bauxite

The important ore of aluminium is (1) bauxite (2) cryolite (3) fluorspar (4) haematite

Description : The important ore of aluminium is (1) bauxite (2) cryolite (3) fluorspar (4) haematite

Last Answer : bauxite

Major portion of the earth's crust is mainly constituted by – (1) Oxygen and Iron (2) Oxygen and Silicon (3) Silicon and Iron (4) Silicon and Aluminium

Description : Major portion of the earth's crust is mainly constituted by – (1) Oxygen and Iron (2) Oxygen and Silicon (3) Silicon and Iron (4) Silicon and Aluminium

Last Answer : (2) Oxygen and Silicon Explanation: Oxygen is the most abundant element in the earth's crust, comprising 46.6% or the crust by weight. Silicon 28%, aluminum 8.2%, iron 5.6%, calcium 4.2% ... Given the abundance of oxygen and silicon, the silicates are the most abundant minerals in the earth's crust.

Major portion of the earth’s crust is mainly constituted by - (1) Oxygen and Iron (2) Oxygen and Silicon (3) Silicon and Iron (4) Silicon and Aluminium

Description : Major portion of the earth’s crust is mainly constituted by - (1) Oxygen and Iron (2) Oxygen and Silicon (3) Silicon and Iron (4) Silicon and Aluminium

Last Answer : (2) Oxygen and Silicon Explanation: Oxygen is the most abundant element in the earth’s crust, comprising 46.6% or the crust by weight. Silicon 28%, aluminum 8.2%, iron 5.6%, calcium 4.2%, sodium 2.5%, magnesium 2.4%, potassium, 2.0%, and titanium 0.61% also comprise the crust.

Major portion of the earth’s crust is mainly constituted by (1) Oxygen and Iron (2) Oxygen and Silicon (3) Silicon and Iron (4) Silicon and Aluminium

Description : Major portion of the earth’s crust is mainly constituted by (1) Oxygen and Iron (2) Oxygen and Silicon (3) Silicon and Iron (4) Silicon and Aluminium

Last Answer : Oxygen and Silicon

Write balanced equations for the reaction of: (i) aluminium when heated in air. Write the name of the product. (ii) iron with steam. Name the product obtained. (iii) calcium with water. Why does calcium start floating in water? -Chemistry

Description : Write balanced equations for the reaction of: (i) aluminium when heated in air. Write the name of the product. (ii) iron with steam. Name the product obtained. (iii) calcium with water. Why does calcium start floating in water? -Chemistry

Last Answer : The bubbles of hydrogen stick to the surface of metal that is why it floats.

Name the regions where India’s bauxite deposits are mainly found. -SST 10th

Description : Name the regions where India’s bauxite deposits are mainly found. -SST 10th

Last Answer : The Amarkantak plateau, Maikal hills and the plateau region of Bilaspur-Katur.

Carborundum consists mainly of (A) Bauxite (B) Silicon carbide (C) Boron carbide (D) Calcium carbide

Description : Carborundum consists mainly of (A) Bauxite (B) Silicon carbide (C) Boron carbide (D) Calcium carbide

Last Answer : (B) Silicon carbide

The “King of Metals” is : (1) Gold (2) Silver (3) Iron (4) Aluminium

Description : The “King of Metals” is : (1) Gold (2) Silver (3) Iron (4) Aluminium

Last Answer : (1) Gold Explanation: Gold, which is not only the most valuable of metals, but also is without its peer in freedom from alloy, is known as the king of metals. Luxurious, classy and beautiful, gold ... most classic and coveted jewelry metal of all. It is also the oldest precious met-al known to man.

The “King of Metals” is : (1) Gold (2) Silver (3) Iron (4) Aluminium

Description : The “King of Metals” is : (1) Gold (2) Silver (3) Iron (4) Aluminium

Last Answer : Gold

The element used in an electric filament is (a) Copper (b) Aluminium (c) Iron (d) Tungsten

Description : The element used in an electric filament is (a) Copper (b) Aluminium (c) Iron (d) Tungsten

Last Answer : Ans:(d)

Earth wire or ground wire is made of: a) copper b) aluminium c) iron d) galvanized steel

Description : Earth wire or ground wire is made of: a) copper b) aluminium c) iron d) galvanized steel

Last Answer : Ans: D

Singhbhum is famous for – (1) Coal (2) Iron (3) Copper (4) Aluminium

Description : Singhbhum is famous for – (1) Coal (2) Iron (3) Copper (4) Aluminium

Last Answer : (2) Iron Explanation: Singhbhum was sometime a large district in the presentday Indian state of Bihar. Chaibasa was the district headquarters of the erstwhile Singhbhum district. Singhbhum is known for ... the iron ore requirements of the IISCO steel plants located at Hirapur, Kulti and Burnpur.

Which of the following is the most abundant metal on Earth's crust? (1) Magnesium (2) Iron (3) Copper (4) Aluminium

Description : Which of the following is the most abundant metal on Earth's crust? (1) Magnesium (2) Iron (3) Copper (4) Aluminium

Last Answer : (4) Aluminium Explanation: Aluminum is the most abundant metal in the Earth's crust, and the third most abundant element therein, after oxygen and silicon. It makes up about 8% by weight of the Earth's solid ... of Earth's volume Oxygen is 46.6%, Silicon 27.77%, Aluminum is 8.09% and iron is 5%.

The most abundant metal in the Earth’s crust is - (1) zinc (2) copper (3) aluminium (4) iron

Description : The most abundant metal in the Earth’s crust is - (1) zinc (2) copper (3) aluminium (4) iron

Last Answer : (3) aluminium Explanation: The most abundant metal on Earth is aluminum. Aluminum is the third most abundant element in the Earth's crust, and makes up 8 percent of it by parts per million. The most abundant element in the Earth's crust is Oxygen followed by Silicon. Both of these are nonmetals.

Ruby and sapphire are oxides of – (1) copper (2) tin (3) iron (4) aluminium

Description : Ruby and sapphire are oxides of – (1) copper (2) tin (3) iron (4) aluminium

Last Answer : (4) aluminium Explanation: Aluminium forms one stable oxide, known by its mineral name corundum. Sapphire and ruby are impure corundum contaminated with trace amounts of other metals. Corundum is a ... . Transparent specimens are used as gems, called ruby if red and padparadscha if pink-orange.