The main constituent of carborundum is __________ carbide. (A) Calcium (B) Silicon (C) Boron (D) Aluminium

The main constituent of carborundum is __________ carbide.
(A) Calcium
(B) Silicon
(C) Boron
(D) Aluminium
by

1 Answer

Answer :

(B) Silicon
by

Related questions

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

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Last Answer : (B) Silicon carbide

Carborundum is another name of – (1) Silicon carbide (2) Silicon oxide (3) Calcium carbide (4) Calcium oxide

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Carborundum is another name of (1) Silicon carbide (2) Silicon oxide (3) Calcium carbide (4) Calcium oxide

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Last Answer :  Silicon carbide

hich of the following is the most suitable abrasive for grinding high tensile strength materials? (A) Silicon carbide (B) Corundum (C) Aluminium oxide (D) Boron carbide

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Write down industrial importance of following ceramics. i) Silicon carbide ii) Aluminium oxide.

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Both rubies and sapphires contain (a) silicon dioxide (b) lead tetroxide (c) aluminium oxide (d) boron nitride

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Beehive coke ovens are made of __________ bricks.(A) Silica (B) Fireclay (C) Silicon carbide (D) Corundum

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In primitive days, __________ was being manufactured by LeblancProcess.(A) Alum(B) Washing soda(C) Soda ash(D) Calcium carbide

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The temperature in the calcium carbide furnace is __________ °C. (A) 200-300 (B) 700-850 (C) 2000-2200 (D) 4000-4500

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Commercial production of calcium carbide requires limestone and __________ as raw materials. (A) Coke (B) Sand (C) Soda ash (D) Fuel oil

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Which of the following has a very high carbide forming tendency in steels? (A) Silicon (B) Chromium (C) Nickel (D) Vanadium

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Which is the second most abundant element of the earth crust? a Oxygen b Nitrogen c Aluminium d Silicon e Calcium

Description : Which is the second most abundant element of the earth crust? a Oxygen b Nitrogen c Aluminium d Silicon e Calcium

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Carbide tipped cutting tools are manufactured by powder metallurgy techniques and have a composition of (A) 90% tungsten carbide and 10% cobalt (B) 70% aluminium oxide & 30% silica (C) 30% nickel, 15% chromium & 55% tungsten (D) 65% tungsten & 35% zirconium

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Which of the following is the most wear resistant grade of carbide used for the cutting tools? (A) Aluminium carbide (B) Tungsten carbide (C) Nickel carbide (D) Iron carbid

Description : Which of the following is the most wear resistant grade of carbide used for the cutting tools? (A) Aluminium carbide (B) Tungsten carbide (C) Nickel carbide (D) Iron carbid

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Which of the following is the most wear resistant grade of carbide used for the cutting tools? (A) Aluminium carbide (B) Tungsten carbide (C) Nickel carbide (D) Iron carbide

Description : Which of the following is the most wear resistant grade of carbide used for the cutting tools? (A) Aluminium carbide (B) Tungsten carbide (C) Nickel carbide (D) Iron carbide

Last Answer : Option B

Metalloids (A) Are good conductor of heat & electricity (B) Act as electron donors with metals & as electron acceptor with non metals (C) Are not necessarily solids at room temperature (D) Are compounds that exhibit both metallic & non-metallic properties to some extent and are exemplified by elements like germanium, silicon & boron

Description : Metalloids (A) Are good conductor of heat & electricity (B) Act as electron donors with metals & as electron acceptor with non metals (C) Are not necessarily solids at room temperature ... & non-metallic properties to some extent and are exemplified by elements like germanium, silicon & boron

Last Answer : D) Are compounds that exhibit both metallic & non-metallic properties to some extent and are exemplified by elements like germanium, silicon & boron

Silicon crystal can be converted to p-type semi-conductor by doping with (A) Phosphorous (B) Nitrogen (C) Carbon (D) Boron

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How is silicon carbide formed? OR What happens when silicon and coke are heated?

Description : How is silicon carbide formed? OR What happens when silicon and coke are heated?

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Explain different engineering properties of silicon carbide. Also discuss its uses.

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Which of the following materials is the hardest? w) calcite x) silicon carbide y) topaz z) quartz

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Mannheim furnace is used in the manufacture of (A) Hydrochloric acid (B) H2SO4 by Chamber process (C) Calcium carbide (D) Corundum

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For the irreversible reaction, Ca+ 2C = Ca C2, Δ H°298 = - 60000 J . mole-1. If a system initially containing 2 moles of calcium, 3 moles of carbon and 1 mole of calcium carbide is allowed to react to completion, the heat evolved at 298 K will be (A) 30,000 J (B) 60,000 J (C) 90,000 J (D) 2,40,000 J

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When water vapours are passed over aluminium carbide, what do we get? -Do You Know?

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Why cannot thousands of compounds of Boron or silicon or germanium not possible?

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Which of the following groups of elements have an OUTER ELECTRONIC configuration of S-2-P-2? w) halogens x) Nitrogen-Phosphorus Group y) Carbon-Silicon Group z) Boron-Aluminum Group

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In silvery paints, the main constituent present is - (1) Aluminium powder (2) Silver powder (3) Lead powder (4) White lead

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The main constituent of fly-ash, is (A) Aluminium oxide (B) Silica (C) Ferrous oxide (D) All of these

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In silvery paints, the main constituent present is (1) Aluminium powder (2) Silver powder (3) Lead powder (4) White lead

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`underset("Calcium carbide")(CaC_(2))overset(H_(2)O)(to)(A)overset("Red hot Cu tube")(to)(B)`, Product (B) of the reaction is:

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Which chemical is used to ripen mangoes artificially? (1) Sulphur Dioxide (2) Nitrous Oxide (3) Calcium Carbide (4) Phosphorous

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