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Fusion of bauxite and __________ produces high alumina cement.

A. Alum

B. Limestone

C. Coke

D. Quartz

Correct Answer :

B. Limestone


Related Questions

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Enzymes are organic catalysts used in the __________ reactions.

A. Chemical

B. Biochemical

C. Photochemical

D. Electrochemical

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The terminology 'BTX' used in coal tar distillation industry refers to

A. Benzol-toluol-xylol

B. Benzol-toluene-xylene

C. Benzene-toluol-xylol

D. Benzene-toluene-xylene

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All enzymes are made of

A. Fats

B. Carbohydrates

C. Proteins

D. Amino acids

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__________ is used as a flux in the extraction of iron from iron ore (haematite) in blast furnace.

A. Bauxite

B. Limestone

C. Quartz

D. Manganese

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Thermoplastic materials

A. Do not soften on application of heat

B. Are heavily branched molecules

C. Are solvent insoluble

D. None of these

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Teflon is

A. Phenol formaldehyde

B. An inorganic polymer

C. Poly tetra-fluoro-ethylene (P.T.F.E.)

D. A monomer

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Bordeaux mixture is a/an

A. Fertiliser

B. Inorganic fungicide

C. Insecticide

D. Explosive

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Neoprene is the trade name of

A. Polyurethane

B. Phenol formaldehyde

C. Polychlorophrene

D. Styrene-butadiene rubber

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Chemical name of soda ash is

A. Sodium bicarbonate

B. Sodium thiosulphate

C. Potassium carbonate

D. None of these

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Which of the following impurities in feed water for high pressure boiler is the most detrimental?

A. Silica

B. Dissolved oxygen

C. Suspended salt

D. Dissolved salt

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Presence of H2S in raw water (to be chlorinated) results in the

A. Reduced softening capacity of zeolite

B. Increased dosage of chlorine to provide a disinfecting residual in the water

C. Easy removal of its hardness

D. None of these

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Multistage catalytic converter is not used in the

A. Conversion of SO2 to SO3

B. NH3 synthesis reaction

C. Both (A) and (B)

D. Neither (A) nor (B)

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Fusion of limestone and __________ produces high alumina cement.

A. Sand

B. Bauxite

C. Quicklime

D. Calcite

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The basic difference between vegetable oils and fats is in their

A. Density

B. Chemical properties

C. Physical state

D. Composition

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Isopropyl benzene produced by alkylation of benzene with propylene is known as

A. Neoprene

B. Cumene

C. Gelatin

D. Mercaptans

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A bio-catalyst produced by living cells which acts independent of the cell is called a/an

A. Substrate

B. Enzyme

C. Nutrient

D. None of these

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Nylon-66 is manufactured from

A. Hexamethylene diamine and adipic acid

B. Hexamethylene diamine and Maleic anhydride

C. Caprolactam

D. Dimethyl terephthalate and ethylene glycol

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Starting material for the commercial production of ethyl alcohol in India is

A. Rice

B. Molasses

C. Fruit of Mahua tree

D. Maize

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Bitterns is a/an

A. Unsaturated fat

B. Starting material for the production of iodine

C. By-product of chlor-alkali industry

D. None of these

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Electro deposition of metals i.e. electroplating is never done on

A. Metals

B. Alloys

C. Refractories

D. Non-metals

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Main constituents of Portland cement are calcium aluminate and

A. Gypsum

B. Silicates

C. Sodium silicate

D. Carbonates

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Basic oxide is absent in __________ glass.

A. Flint

B. Pyrex

C. Quartz

D. All (A), (B) & (C)

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An alkali metal salt of Palmitic acid is known as

A. Soap

B. Metallic soap

C. Detergent

D. Alkaloid

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Paper pulp produced by Kraft/sulphate process is

A. Bleached easily

B. Dull white in color

C. Strong fibrous

D. Dark colored

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Which of the following is not a pyrite ore?

A. Celestite

B. Galena

C. Gypsum

D. Siderite

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Fats as compared to oils have

A. More unsaturated glycerides of fatty acids

B. Less unsaturated glycerides of fatty acids

C. Much higher reactivity to oxygen

D. Lower melting point

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__________ process is used for the commercial production of nitric acid by the catalytic oxidation of ammonia.

A. Solvay

B. Ostwald's

C. Haber's

D. None of these

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Refractory bricks burnt at very high temperature have got

A. Greater resistance to corrosion by slags

B. Less resistance to corrosion by slags

C. High spalling tendency

D. None of these

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The catalyst used in the manufacture of DDT (from chloral and chlorobenzene) is

A. Dilute H2SO4

B. Oleum

C. Ultraviolet light

D. None of these

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Manufacture of phthalic anhydride uses __________ as a catalyst.

A. Ni

B. Cr

C. V2O5

D. Al2O3