Use of water having dissolved oxygen in boilers promotes

Question

Use of water having dissolved oxygen in boilers promotes

A. Corrosion

B. Sequestration

C. Scale formation

D. None of these

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Sulphuric acid saturated with SO₃ is called

A. Concentrated H₂SO₄

B. Sulphurous acid

C. Oleum

D. None of these

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Catalyst used in the hydrogenation of oil is

A. Nickel

B. Platinum

C. Iron

D. Alumina

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Lubricating greases are a mixture of

A. Mineral oil, soap and additives

B. Mineral oil and metallic soap

C. Mineral oil and fatty oil

D. Fatty oil and metallic soap

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Detergent is produced by the sulphonation of dodecyl benzene, which is an __________ reaction.

A. Endothermic

B. Exothermic

C. Irreversible

D. Both (B) and (C)

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Sudden temperature fluctuation does not affect pyrex glass, because of its

A. Low co-efficient of expansion

B. High co-efficient of expansion

C. High melting point

D. Both (B) and (C)

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Glycerine is not used in the

A. Manufacture of explosive

B. Conditioning and humidification of tobacco

C. Manufacture of pharmaceuticals

D. None of these

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Commercial scale production of hydrogen from iron-steam reaction represented by, 3Fe + 3H₂O = Fe₃O₄ + 4H₂, is not practised, as it is

A. A slow reaction

B. A discontinuous reaction (requiring regeneration of iron by water gas intermittently)

C. Still in development stage (by employing fluidised bed technique)

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

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The major constituents of glass are

A. Lime, clay and soda ash

B. Sand, lime and soda ash

C. Silica, alumina and clay

D. Silica, alumina and soda ash

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Ethylene oxide is produced by oxidation of ethylene in presence of AgO catalyst at

A. 1 atm & 100°C

B. 5 atm & 275°C

C. 100 atm & 500°C

D. 50 atm & 1000°C

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Terylene is

A. Same as Dacron

B. A polyester

C. Both (A) & (B)

D. Neither (A) nor (B)

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Analgesic drugs are

A. Pain relievers

B. Antibiotics

C. Used in the treatment of T.B.

D. Used in the treatment of typhoid

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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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Catalyst used during the manufacture of 'Vanaspati Ghee' is

A. Zinc

B. Nickel

C. Platinum

D. Copper

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Thermal pyrolysis of ethylene dichloride produces

A. Trichloroethylene

B. Vinyl chloride

C. Ethanol amine

D. Ethylene oxide

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Nickel is not used as a catalyst in the

A. Fischer-Tropsch process

B. Shift conversion

C. Hydrogenation of oil

D. Ostwald's process of HNO3 manufacture

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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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Production of alcohol by fermentation of molasses is a/an __________ process.

A. Anaerobic

B. Aerobic

C. Endothermic

D. Both (B) and (C)

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Zeolite is a/an

A. Naturally occuring clay which is capable of exchanging cations

B. Abrasive material

C. Catalyst used in shift conversion

D. None of these

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Pick out the wrong statement.

A. Low intensity explosives are also called propellants, whereas high intensity explosive are called detonators

B. Gun powder comprises of 75% salt petre, 15% charcoal and 10% sulphur

C. Lead azide is a popular military explosive

D. TNT is a hygroscopic explosive having very high melting point and is non-toxic to human being

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Acrylonitrile is mainly used in the __________ industry.

A. Polymer

B. Printing

C. Dyeing

D. Photographic

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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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Which of the following is the purest form of water out of the following?

A. Underground water

B. Rain water

C. Well water

D. Lake water

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Chemical name of 'alum' is

A. Barium sulphate

B. Aluminium sulphate

C. Aluminium chloride

D. Calcium sulphate

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High purity nitrogen is used in

A. Making protective gas (95% N2 + 5% H2) for annealing of cold rolled steel strip coils

B. Fire fighting purposes

C. Both (A) & (B)

D. Neither (A) nor (B)

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Commercially ethylene is produced from naphtha by

A. Catalytic cracking

B. Catalytic dehydrogenation

C. Pyrolysis

D. Hydrocracking

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In the manufacture of H₂SO₄, vanadium catalyst as compared to platinum catalyst

A. Gives higher conversion efficiency

B. Has a longer life and is not poisoned by arsenic

C. Handles lower SO2 content gas (7 -10% SO₂), thus increasing the capital cost of the plant

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

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Use of water having dissolved oxygen in boilers promotes

A. Corrosion

B. Sequestration

C. Scale formation

D. None of these

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Magnesium and calcium __________ cause temporary hardness of water.

A. Carbonates

B. Bicarbonates

C. Phosphates

D. Sulphates

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Dichloro diphenyl __________ is the full form of DDT (an insecticide).

A. Tetrachloroethane

B. Trichloroethane

C. Tetrachloromethane

D. Trichloromethane

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Producer gas consists mainly of

A. CO, CO₂ N₂, H₂

B. CO, H₂

C. H₂, CH₄

D. C₂H₂, CO₂, H₂

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Accepted Answer

A. Corrosion

Use of water having dissolved oxygen in boilers promotes

Correct Answer :

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Related Questions

Sulphuric acid saturated with SO₃ is called

Catalyst used in the hydrogenation of oil is

Lubricating greases are a mixture of

Detergent is produced by the sulphonation of dodecyl benzene, which is an __________ reaction.

Sudden temperature fluctuation does not affect pyrex glass, because of its

Glycerine is not used in the

Commercial scale production of hydrogen from iron-steam reaction represented by, 3Fe + 3H₂O = Fe₃O₄ + 4H₂, is not practised, as it is

The major constituents of glass are

Ethylene oxide is produced by oxidation of ethylene in presence of AgO catalyst at

Terylene is

Analgesic drugs are

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

Catalyst used during the manufacture of 'Vanaspati Ghee' is

Thermal pyrolysis of ethylene dichloride produces

Nickel is not used as a catalyst in the

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

Production of alcohol by fermentation of molasses is a/an __________ process.

Zeolite is a/an

Pick out the wrong statement.

Acrylonitrile is mainly used in the __________ industry.

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

Which of the following is the purest form of water out of the following?

Chemical name of 'alum' is

High purity nitrogen is used in

Commercially ethylene is produced from naphtha by

In the manufacture of H₂SO₄, vanadium catalyst as compared to platinum catalyst

Use of water having dissolved oxygen in boilers promotes

Magnesium and calcium __________ cause temporary hardness of water.

Dichloro diphenyl __________ is the full form of DDT (an insecticide).

Producer gas consists mainly of

Also checkout

Use of water having dissolved oxygen in boilers promotes

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Sulphuric acid saturated with SO3 is called

Catalyst used in the hydrogenation of oil is

Lubricating greases are a mixture of

Detergent is produced by the sulphonation of dodecyl benzene, which is an __________ reaction.

Sudden temperature fluctuation does not affect pyrex glass, because of its

Glycerine is not used in the

Commercial scale production of hydrogen from iron-steam reaction represented by, 3Fe + 3H2O = Fe3O4 + 4H2, is not practised, as it is

The major constituents of glass are

Ethylene oxide is produced by oxidation of ethylene in presence of AgO catalyst at

Terylene is

Analgesic drugs are

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

Catalyst used during the manufacture of 'Vanaspati Ghee' is

Thermal pyrolysis of ethylene dichloride produces

Nickel is not used as a catalyst in the

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

Production of alcohol by fermentation of molasses is a/an __________ process.

Zeolite is a/an

Pick out the wrong statement.

Acrylonitrile is mainly used in the __________ industry.

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

Which of the following is the purest form of water out of the following?

Chemical name of 'alum' is

High purity nitrogen is used in

Commercially ethylene is produced from naphtha by

In the manufacture of H2SO4, vanadium catalyst as compared to platinum catalyst

Use of water having dissolved oxygen in boilers promotes

Magnesium and calcium __________ cause temporary hardness of water.

Dichloro diphenyl __________ is the full form of DDT (an insecticide).

Producer gas consists mainly of

Also checkout

Sulphuric acid saturated with SO₃ is called

Commercial scale production of hydrogen from iron-steam reaction represented by, 3Fe + 3H₂O = Fe₃O₄ + 4H₂, is not practised, as it is

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

In the manufacture of H₂SO₄, vanadium catalyst as compared to platinum catalyst