The biochemical treatment applied to sewage effluents is a process of

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The biochemical treatment applied to sewage effluents is a process of

A. Dehydration

B. Reduction

C. Oxidation

D. Polymerisation

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Deacon's method is used for the manufacture of

A. Glauber's salt

B. Common salt

C. Chlorine

D. Graphite electrode

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Dechlorination of treated water is necessary to

A. Remove residual turbidity

B. Reduce the bacterial load on filter

C. Control taste and odour

D. Remove chlorinous taste

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Very fine suspended and colloidal impurities are removed from water by a process called

A. Sedimentation

B. Coagulation

C. Disinfection

D. Softening

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Massecuite is

A. Used for paper making

B. Used as a cattle feed

C. Highly acidic in nature

D. None of these

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Yellow phosphorus is transported under

A. Air

B. Water

C. Nitrogen

D. Helium

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Styrene (a monomer for the production of polystyrene) is commercially produced by

A. Catalytic dehydrogenation of ethyl benzene

B. Dehydration of ethyl alcohol followed by hydrogenation

C. Reacting ethylene oxide with acetaldehyde

D. Fermentation of starch

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RDX (an explosive), which is more sensitive but less toxic than TNT, is chemically

A. Cyclo trimethylene trinitramine

B. Trinitro resorcinol

C. Cyclo tetramethylene tetranitramine

D. Trinitrobenzene

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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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Oils and fats are converted to soap in a process called

A. Hydrogenation

B. Esterification

C. Saponification

D. None of these

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Coal tar is used as a

A. Binding material for coal briquettes

B. Fuel in rotary kiln

C. Binder in making carbon electrodes

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

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Concentration of sulphide ores is done usually by

A. Roasting

B. Smelting

C. Froth floatation

D. Electromagnetic separation

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Most widely and commonly used coagulant for the removal of suspended impurities in water is

A. Bleaching powder

B. Slaked lime

C. Alum

D. Copper sulphate

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Gun powder, which is an explosive comprises of charcoal, sulphur and

A. Glycerine

B. Salt petre

C. Nitro glycerine

D. Dynamite

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Lurgi coal gasifier is a pressurised __________ bed reactor.

A. Moving

B. Fixed

C. Fluidised

D. Entrained

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The manufacture of Kraft pulp is done by a/an __________ process.

A. Alkaline

B. Acidic

C. Neutral

D. None of these

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An oil is converted into fat by its

A. Hydrogenation

B. Hydrolysis

C. Hydrocracking

D. Hydration

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Digestion of wood-base materials (for manufacture of pulp) is done to

A. Remove lignin

B. Produce long fibres

C. Prevent deterioration on storage

D. None of these

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At very high concentration of enzymes, the rate of fermentation chemical reaction is __________ the concentration of reactants.

A. Independent of

B. Directly proportional to

C. Inversely proportional to

D. Proportional to the square of

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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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High magnesia lime is added to hot sugar cane juice (during the manufacture of sugar) to

A. Flocculate the impurities

B. Facilitate fast filtration

C. Both (A) and (B)

D. Neither (A) nor (B)

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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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Which of the following is not an antibiotic?

A. Penicillin

B. Streptomycin

C. Tetracycline

D. Quinine

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Hydrogenation of oil does not

A. Remove double bonds

B. Raise its melting point

C. Improve its resistance to oxidation

D. None of these

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Drinking (potable) water treatment does not involve

A. Coagulation

B. Sedimentation

C. Softening

D. Disinfection

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Thermosetting materials

A. Are cross-linked molecules

B. Soften on application of heat

C. Are solvent soluble

D. None of these

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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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Highly porous refractory bricks are

A. Less susceptible to chemical attack by molten fluxes and gases etc

B. Very strong

C. Having very high thermal conductivity

D. None of these

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The enzyme which converts starch into the disaccharides maltose is

A. Diastase

B. Maltase

C. Yeast

D. None of these

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Which of the following additives/water proofing agents is added to lower the hydrophilic (moisture loving) characteristic of cement?

A. Xanthates

B. Stearic acid

C. Calcium & aluminium stearate

D. Formic acid

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Enamels

A. Give good glossy finish

B. Are same as varnish

C. Are prepared from non-drying oil

D. Do not contain pigment

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Accepted Answer

C. Oxidation

The biochemical treatment applied to sewage effluents is a process of

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Deacon's method is used for the manufacture of

Dechlorination of treated water is necessary to

Very fine suspended and colloidal impurities are removed from water by a process called

Massecuite is

Yellow phosphorus is transported under

Styrene (a monomer for the production of polystyrene) is commercially produced by

RDX (an explosive), which is more sensitive but less toxic than TNT, is chemically

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

Oils and fats are converted to soap in a process called

Coal tar is used as a

Concentration of sulphide ores is done usually by

Most widely and commonly used coagulant for the removal of suspended impurities in water is

Gun powder, which is an explosive comprises of charcoal, sulphur and

Lurgi coal gasifier is a pressurised __________ bed reactor.

The manufacture of Kraft pulp is done by a/an __________ process.

An oil is converted into fat by its

Digestion of wood-base materials (for manufacture of pulp) is done to

At very high concentration of enzymes, the rate of fermentation chemical reaction is __________ the concentration of reactants.

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

High magnesia lime is added to hot sugar cane juice (during the manufacture of sugar) to

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

Which of the following is not an antibiotic?

Hydrogenation of oil does not

Drinking (potable) water treatment does not involve

Thermosetting materials

Commercial production of calcium carbide requires limestone and __________ as raw materials.

Highly porous refractory bricks are

The enzyme which converts starch into the disaccharides maltose is

Which of the following additives/water proofing agents is added to lower the hydrophilic (moisture loving) characteristic of cement?

Enamels

Also checkout

The biochemical treatment applied to sewage effluents is a process of

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Deacon's method is used for the manufacture of

Dechlorination of treated water is necessary to

Very fine suspended and colloidal impurities are removed from water by a process called

Massecuite is

Yellow phosphorus is transported under

Styrene (a monomer for the production of polystyrene) is commercially produced by

RDX (an explosive), which is more sensitive but less toxic than TNT, is chemically

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

Oils and fats are converted to soap in a process called

Coal tar is used as a

Concentration of sulphide ores is done usually by

Most widely and commonly used coagulant for the removal of suspended impurities in water is

Gun powder, which is an explosive comprises of charcoal, sulphur and

Lurgi coal gasifier is a pressurised __________ bed reactor.

The manufacture of Kraft pulp is done by a/an __________ process.

An oil is converted into fat by its

Digestion of wood-base materials (for manufacture of pulp) is done to

At very high concentration of enzymes, the rate of fermentation chemical reaction is __________ the concentration of reactants.

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

High magnesia lime is added to hot sugar cane juice (during the manufacture of sugar) to

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

Which of the following is not an antibiotic?

Hydrogenation of oil does not

Drinking (potable) water treatment does not involve

Thermosetting materials

Commercial production of calcium carbide requires limestone and __________ as raw materials.

Highly porous refractory bricks are

The enzyme which converts starch into the disaccharides maltose is

Which of the following additives/water proofing agents is added to lower the hydrophilic (moisture loving) characteristic of cement?

Enamels

Also checkout

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