__________ is the major constituent of the Portland cement.

Question

__________ is the major constituent of the Portland cement.

A. Calcium carbonate

B. Calcium oxide

C. Tricalcium silicate

D. Calcium sulphate

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Comment

Addition of calcium oxide to water produces

A. Exothermic heat

B. Hissing sound

C. Slaked lime

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

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Nylon-6 is a

A. Polyamide

B. Thermosetting resin

C. Polyester

D. None of these

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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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Alcohol percentage in molasses may be around

A. 10

B. 40

C. 70

D. 85

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Phenol formaldehyde

A. Employs addition polymerisation

B. Employs condensation polymerisation

C. Is a monomer

D. Is an abrasive material

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Bleaching action of bleaching powder is due to its __________ properties.

A. Reducing

B. Oxidising

C. Disinfecting

D. None of these

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Liquefaction of gases cannot be done by

A. Exchange of heat with colder stream

B. Adiabatic expansion through a throttle valve (Joule-Thomson expansion)

C. Merely compressing it beyond critical pressure

D. Adiabatic expansion against a piston or in a turbine

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Cumene (isopropyl benzene) is made by

A. Oxidation of naphthalene

B. Propylene alkylation of benzene

C. Polymerisation of a mixture of benzene & propylene

D. None of these

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Phenol formaldehyde resin is used as an adhesive in making

A. Laminates

B. Card boxes

C. Furniture

D. Books

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Hydrogenation of oil/fat does not

A. Improve its resistance to rancid oxidation

B. Raise its melting point

C. Remove double bonds

D. None of these

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In primitive days, __________ was being manufactured by Leblanc Process.

A. Alum

B. Washing soda

C. Soda ash

D. Calcium carbide

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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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Pick out the wrong statement pertaining to the soap manufacture.

A. Transparent soaps are made by cold process

B. Organic pigments are used as colouring materials in the soap manufacture

C. Both laundry as well as toilet soaps are manufactured by hot process

D. Colourless rosin is used in the manufacture of laundry soaps

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Zeolite removes both temporary as well as permanent hardness of water by precipitating calcium and magnesium present in water as insoluble zeolites. Used zeolite is regenerated by flushing with the solution of

A. Calcium sulphate

B. Sodium chloride

C. Sodium sulphate

D. Magnesium chloride

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Boiling of water containing temporary hardness produces

A. CO₂

B. CaSO₄

C. CaHCO₃

D. None of these

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Refractory bricks having high thermal conductivity is desirable, when it is to be used in the

A. L.D. converter

B. Blast furnace

C. Rotary kiln

D. Recuperator

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Pick out the wrong statement.

A. Chamber process of sulphuric acid manufacture produces pure acid of concentration < 80%

B. Contact process of sulphuric acid manufacture produces pure acid of concentration ≥ 98%

C. 75% oleum can be produced by distillation of 20% oleum

D. Contact process of sulphuric acid manufacture uses nickel as the catalyst

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Contact process of sulphuric acid manufacture

A. Yields acid of higher concentration than chamber process

B. Yields acids of lower concentration than chamber process

C. Is obsolete

D. Eliminates absorber

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Carbon disulphide is mainly used in the production of

A. Viscose rayon

B. Corundum

C. Plasticiser for unsaturated polyester

D. Paints

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Sodium chloride content in sea water is about __________ gms/litre.

A. 2

B. 10

C. 25

D. 50

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For the hydrogenation of oils, (i) is commonly used as catalyst and (ii) is a catalyst poison.

A. (i) platinum (ii) sulphur

B. (i) palladium (ii) oxygen

C. (i) nickel (ii) sulphur

D. (i) nickel (ii) oxygen

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Cumene is the starting material for the production of

A. Benzoic acid

B. Phenol and acetone

C. Isoprene

D. Styrene

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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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Permanent hardness of water is due to the presence of calcium & magnesium

A. Bi-carbonates

B. Sulphates & chlorides

C. Carbonate

D. None of these

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Separation of fresh water from sea water can be done by the __________ operation.

A. Osmosis

B. Reverse osmosis

C. Absorption

D. Adsorption

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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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Rancidity of the fatty oil can be reduced by its

A. Decoloration

B. Hydrogenation

C. Oxidation

D. Purification

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Oxidation of ortho-xylene in presence of __________ catalyst is done to produce phthalic anhydride on commercial scale.

A. Nickel

B. Vanadium

C. Alumina

D. Iron

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Adipic acid is an intermediate in the manufacture of

A. Perspex

B. Nylon-66

C. Polystyrene

D. Bakelite

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Chemical name of 'alum' is

A. Barium sulphate

B. Aluminium sulphate

C. Aluminium chloride

D. Calcium sulphate

Discuss this answer

Accepted Answer

C. Tricalcium silicate

__________ is the major constituent of the Portland cement.

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Addition of calcium oxide to water produces

Nylon-6 is a

The temperature in the calcium carbide furnace is __________ °C.

Alcohol percentage in molasses may be around

Phenol formaldehyde

Bleaching action of bleaching powder is due to its __________ properties.

Liquefaction of gases cannot be done by

Cumene (isopropyl benzene) is made by

Phenol formaldehyde resin is used as an adhesive in making

Hydrogenation of oil/fat does not

In primitive days, __________ was being manufactured by Leblanc Process.

Teflon is

Pick out the wrong statement pertaining to the soap manufacture.

Zeolite removes both temporary as well as permanent hardness of water by precipitating calcium and magnesium present in water as insoluble zeolites. Used zeolite is regenerated by flushing with the solution of

Boiling of water containing temporary hardness produces

Refractory bricks having high thermal conductivity is desirable, when it is to be used in the

Pick out the wrong statement.

Contact process of sulphuric acid manufacture

Carbon disulphide is mainly used in the production of

Sodium chloride content in sea water is about __________ gms/litre.

For the hydrogenation of oils, (i) is commonly used as catalyst and (ii) is a catalyst poison.

Cumene is the starting material for the production of

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

Permanent hardness of water is due to the presence of calcium & magnesium

Separation of fresh water from sea water can be done by the __________ operation.

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

Rancidity of the fatty oil can be reduced by its

Oxidation of ortho-xylene in presence of __________ catalyst is done to produce phthalic anhydride on commercial scale.

Adipic acid is an intermediate in the manufacture of

Chemical name of 'alum' is

Also checkout

__________ is the major constituent of the Portland cement.

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Addition of calcium oxide to water produces

Nylon-6 is a

The temperature in the calcium carbide furnace is __________ °C.

Alcohol percentage in molasses may be around

Phenol formaldehyde

Bleaching action of bleaching powder is due to its __________ properties.

Liquefaction of gases cannot be done by

Cumene (isopropyl benzene) is made by

Phenol formaldehyde resin is used as an adhesive in making

Hydrogenation of oil/fat does not

In primitive days, __________ was being manufactured by Leblanc Process.

Teflon is

Pick out the wrong statement pertaining to the soap manufacture.

Zeolite removes both temporary as well as permanent hardness of water by precipitating calcium and magnesium present in water as insoluble zeolites. Used zeolite is regenerated by flushing with the solution of

Boiling of water containing temporary hardness produces

Refractory bricks having high thermal conductivity is desirable, when it is to be used in the

Pick out the wrong statement.

Contact process of sulphuric acid manufacture

Carbon disulphide is mainly used in the production of

Sodium chloride content in sea water is about __________ gms/litre.

For the hydrogenation of oils, __________ (i) __________ is commonly used as catalyst and __________ (ii) __________ is a catalyst poison.

Cumene is the starting material for the production of

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

Permanent hardness of water is due to the presence of calcium & magnesium

Separation of fresh water from sea water can be done by the __________ operation.

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

Rancidity of the fatty oil can be reduced by its

Oxidation of ortho-xylene in presence of __________ catalyst is done to produce phthalic anhydride on commercial scale.

Adipic acid is an intermediate in the manufacture of

Chemical name of 'alum' is

Also checkout

For the hydrogenation of oils, (i) is commonly used as catalyst and (ii) is a catalyst poison.