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

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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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The purpose of adding Na₂CO₃ to water of low alkalinity is to

A. Permit the use of alum as a coagulant

B. Increase the softening capacity of zeolite

C. Facilitate easy regeneration of zeolite

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

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Consider the production of ammonia from methene and air as raw materials. The catalysts used are:
(i) for steam reforming of methane and
(ii) for ammonia synthesis.

A. (i) - Ni/Al₂O₃; (ii) - Cu - ZnO/Al₂O₃

B. (i) - Fe/Al₂O₃; (ii) - Cu - ZnO/Al₂O₃

C. (i) - Ni/Al₂O₃; (ii) - Fe/Al₂O₃

D. (i) - Fe/Al₂O₃; (ii) - Ni/Al₂O₃

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The major use of butadiene is

A. As a plasticiser for unsaturated polyester

B. In the manufacture of synthetic rubber

C. As an anti-skinning agent in paint

D. None of these

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Polythene is a/an __________ polymerisation product.

A. Addition

B. Condensation

C. Thermosetting

D. None of these

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Reverse osmosis is normally used for the

A. Separation of isotopes of uranium from gaseous uranium hexafluoride

B. Separation of helium from natural gas

C. Desalination of brackish water to produce potable (drinking) water

D. Purification of oxygen

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Carborundum consists mainly of

A. Bauxite

B. Silicon carbide

C. Boron carbide

D. Calcium carbide

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Pick out the false statement pertaining to water treatment.

A. Aeration of water is effective in CO2 removal

B. The zeolite water softening process reduces the hardness of water by not more than 50%

C. Sodium sulphate or sodium carbonate do not cause hardness in water

D. Water with pH value less than 7, is acidic

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Viscose rayon is chemically

A. Cellulose nitrate

B. Regenerated cellulose nitrate

C. Cellulose acetate

D. Regenerated cellulose acetate

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Sulphur addition in soap is done to

A. Improve the soap texture

B. Cure pimples & dandruff

C. Fasten lather formation

D. Increase its cleansing action

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Which is the main reducing agent during production of iron from iron ore in a blast furnace?

A. C

B. CO

C. CO₂

D. H₂

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Soaps remove dirt by

A. Increasing the surface tension

B. Decreasing wettability

C. Supplying hydrophilic group

D. None of these

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'Hollander beater' machine used in the paper manufacturing plant does not accomplish the task of

A. Final rolling out of paper

B. Cutting of fibres

C. Hydration of fibres

D. Fibrillation of fibre

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Antibiotic

A. Inhibits/destroys the growth of microorganisms

B. Is used as a pain reliever

C. Is an antimalarial

D. Is an anaesthetic

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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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Naphthols are derivates of

A. Methyl amine

B. Naphthalene

C. Phenol

D. Xylene

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Which of the following is not a food additive?

A. Citric acid

B. Invertage

C. Benzoyl peroxide

D. Ammonium chloride

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Phosphoric acid is prepared from

A. Cryolite

B. Chalcopyrite

C. Rock phosphate

D. None of these

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__________ are added in lacquers to remove film brittleness and to improve adhereness.

A. Film forming materials

B. Plasticisers

C. Diluents

D. Solvents

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Which of the following is a detergent?

A. Fatty alcohol

B. Alkyl benzene sulphonate (ABS)

C. Fatty acids

D. Methylene chloride

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20% oleum means that in 100 kg oleum, there are 20 kg of

A. SO₃ and 80kg of H₂SO₄

B. H₂SO₄ and 80kg of SO₃

C. SO₃ for each 100 kg of H₂SO₄

D. None of these

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Mercury cells for caustic soda manufacture, compared to diaphragm cells

A. Require lower initial investment

B. Require more power

C. Produce lower concentration NaOH

D. None of these

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__________ is the major constituent of the Portland cement.

A. Calcium carbonate

B. Calcium oxide

C. Tricalcium silicate

D. Calcium sulphate

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__________ of rubber decreases after its vulcanisation.

A. Resistance to the action of organic solvent

B. Tackiness

C. Maximum service temperature

D. Tensile strength

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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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The process involved in converting rubber into a thin sheet or coating it on fabric is called

A. Extrusion

B. Mastication

C. Calendaring

D. Vulcanisation

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With increase in temperature, the equilibrium constant at constant pressure (Kp) for oxidation of sulphur dioxide

A. Increases

B. Increases linearly

C. Decreases

D. Decreases linearly

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Fermentator temperature during production of alcohol from molasses is around __________ °C.

A. 5

B. 30

C. 130

D. 300

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Which of the following is used as a binding material in soap to improve soap texture?

A. Rosin

B. Borax

C. Benzyl acetate

D. Sodium carbonate

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Which of the following processes can remove both temporary as well as permanent hardness of water?

A. Filtration

B. Boiling

C. Distillation

D. None of these

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Manufacture of phthalic anhydride uses __________ as a catalyst.

A. Ni

B. Cr

C. V₂O₅

D. Al₂O₃

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Accepted Answer

B. Limestone

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

Correct Answer :

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Related Questions

The purpose of adding Na₂CO₃ to water of low alkalinity is to

Consider the production of ammonia from methene and air as raw materials. The catalysts used are:
(i) for steam reforming of methane and
(ii) for ammonia synthesis.

The major use of butadiene is

Polythene is a/an __________ polymerisation product.

Reverse osmosis is normally used for the

Carborundum consists mainly of

Pick out the false statement pertaining to water treatment.

Viscose rayon is chemically

Sulphur addition in soap is done to

Which is the main reducing agent during production of iron from iron ore in a blast furnace?

Soaps remove dirt by

'Hollander beater' machine used in the paper manufacturing plant does not accomplish the task of

Antibiotic

Phenol formaldehyde resin is used as an adhesive in making

Naphthols are derivates of

Which of the following is not a food additive?

Phosphoric acid is prepared from

__________ are added in lacquers to remove film brittleness and to improve adhereness.

Which of the following is a detergent?

20% oleum means that in 100 kg oleum, there are 20 kg of

Mercury cells for caustic soda manufacture, compared to diaphragm cells

__________ is the major constituent of the Portland cement.

__________ of rubber decreases after its vulcanisation.

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

The process involved in converting rubber into a thin sheet or coating it on fabric is called

With increase in temperature, the equilibrium constant at constant pressure (Kp) for oxidation of sulphur dioxide

Fermentator temperature during production of alcohol from molasses is around __________ °C.

Which of the following is used as a binding material in soap to improve soap texture?

Which of the following processes can remove both temporary as well as permanent hardness of water?

Manufacture of phthalic anhydride uses __________ as a catalyst.

Also checkout

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

Correct Answer :

Show all Chemical Process MCQ

Related Questions

The purpose of adding Na2CO3 to water of low alkalinity is to

Consider the production of ammonia from methene and air as raw materials. The catalysts used are:(i) __________ for steam reforming of methane and(ii) __________ for ammonia synthesis.

The major use of butadiene is

Polythene is a/an __________ polymerisation product.

Reverse osmosis is normally used for the

Carborundum consists mainly of

Pick out the false statement pertaining to water treatment.

Viscose rayon is chemically

Sulphur addition in soap is done to

Which is the main reducing agent during production of iron from iron ore in a blast furnace?

Soaps remove dirt by

'Hollander beater' machine used in the paper manufacturing plant does not accomplish the task of

Antibiotic

Phenol formaldehyde resin is used as an adhesive in making

Naphthols are derivates of

Which of the following is not a food additive?

Phosphoric acid is prepared from

__________ are added in lacquers to remove film brittleness and to improve adhereness.

Which of the following is a detergent?

20% oleum means that in 100 kg oleum, there are 20 kg of

Mercury cells for caustic soda manufacture, compared to diaphragm cells

__________ is the major constituent of the Portland cement.

__________ of rubber decreases after its vulcanisation.

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

The process involved in converting rubber into a thin sheet or coating it on fabric is called

With increase in temperature, the equilibrium constant at constant pressure (Kp) for oxidation of sulphur dioxide

Fermentator temperature during production of alcohol from molasses is around __________ °C.

Which of the following is used as a binding material in soap to improve soap texture?

Which of the following processes can remove both temporary as well as permanent hardness of water?

Manufacture of phthalic anhydride uses __________ as a catalyst.

Also checkout

The purpose of adding Na₂CO₃ to water of low alkalinity is to

Consider the production of ammonia from methene and air as raw materials. The catalysts used are:
(i) for steam reforming of methane and
(ii) for ammonia synthesis.