Enzymes are organic catalysts used in the __________ reactions.

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Enzymes are organic catalysts used in the __________ reactions.

A. Chemical

B. Biochemical

C. Photochemical

D. Electrochemical

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Iron ore hematite is concentrated using

A. Electromagnetic separation mainly

B. Gravity separation

C. Froth floatation

D. Roasting

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Exothermic neutralisation reaction between caustic soda and dodecylbenzene sulfonic acid produces sodium dodecylbenzene sulphate, which is a/an

A. Explosive

B. Soap

C. Detergent

D. Analgesic drug

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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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Linde process of gas liquefaction employs

A. Exchange of heat with colder stream

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

C. Adiabatic expansion against a piston or in a turbine

D. Merely compressing the gas beyond its critical pressure

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In nylon-66, the first and second numbers (i.e., 6) respectively designate the number of carbon atoms present in the

A. Diamine and the ring

B. Dibasic acid and the ring

C. Diamine and the dibasic acid

D. None of these

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Lindane is

A. Not a fumigant

B. BHC (Benzene Hexachloride) containing 99% γ-isomer

C. A by-product of BHC manufacture

D. Both (B) and (C)

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Which of the following may be viewed as a catalyst in the manufacture of soda ash by Solvay process?

A. NH3

B. NaCl

C. CaO

D. Coke

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Sucrose content in the raw juice extracted from sugar cane is about __________ percent.

A. 1 - 2

B. 15 - 20

C. 50 - 60

D. 80 - 85

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Cellulose percentage in bamboo fibre is about

A. 10

B. 20

C. 50

D. 85

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Glass is

A. Mainly CaO

B. Subjected to galvanising

C. A super cooled liquid

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

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Average sulphur content in Indian pyrites is about __________ percent.

A. 15

B. 35

C. 55

D. 70

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Ultimate analysis of coal determines its __________ content.

A. Carbon, hydrogen, nitrogen & sulphur

B. Carbon, ash, sulphur & nitrogen

C. Carbon, sulphur, volatile matter & ash

D. Carbon, volatile matter, ash & moisture

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Bakelite is chemically known as

A. Polyvinyl chloride (PVC)

B. Polybutadiene

C. Phenol formaldehyde

D. Polyurethane

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Mercury electrolytic cells are preferred over diaphragm electrolytic cell (for production of caustic soda), as it

A. Has larger production capacity per unit cell

B. Consumes less power per ton of Cl2 produced

C. Produces high purity (70%) caustic soda directly

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

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Which of the following is the most adverse factor challenging the choice of mercury electrolytic cell process for the production of caustic soda?

A. High cost of mercury

B. High specific gravity of mercury

C. Non-availability of high purity mercury

D. Pollution of water stream by mercury

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Dry ice (solidified CO₂) is used for the

A. Storage & shipment of frozen foods and ice-creams

B. Liquefaction of permanent gases

C. Liquefaction of natural gas

D. None of these

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Vegetable oils contain large quantity of glycerides of unsaturated acids. When the vegetable oils contain high amount of saturated fatty acids, it is termed as __________ oil.

A. Drying

B. Semi-drying

C. Non-drying

D. None of these

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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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Chalcopyrite is the main ore of

A. Copper

B. Lead

C. Tin

D. Iron

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Glauber's salt is chemically represented by

A. Na₂SO₄.10H₂O

B. CaCl(OCl)

C. CaSO₄.H₂O

D. (NH₄)₂SO₄

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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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In multistage equilibrium conversion of SO₂ to SO₃ (2SO₂ + O₂ 2SO₃), the reverse reaction becomes appreciable at a temperature of 550° C. The percentage equilibrium conversion of SO₂ to SO₃ can be increased by

A. Increasing the oxygen concentration

B. Putting more quantity of V2O5 catalyst in the converter

C. Removing some quantity of SO3 during intermediate stage

D. Maintaining low temperature & pressure in the converter

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Frasch process is for

A. Making oxygen

B. Producing helium

C. Mining sulphur

D. Making nitrogen

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Kaolin is a/an

A. Refractory material

B. Synthetic resin

C. Artificial abrasive

D. Blue pigment

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

A. Alum

B. Washing soda

C. Soda ash

D. Calcium carbide

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Industrial production of chloroform requires acetone and

A. Phosgene

B. Calcium hypochlorite

C. Chlorine

D. Ammonium chloride

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Which of the following is the main constituent of the mother liquor produced in salt industry?

A. Quick lime

B. Glauber's salt

C. Salt petre

D. Bromine

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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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Accepted Answer

B. Biochemical

Enzymes are organic catalysts used in the __________ reactions.

Correct Answer :

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Related Questions

Iron ore hematite is concentrated using

Exothermic neutralisation reaction between caustic soda and dodecylbenzene sulfonic acid produces sodium dodecylbenzene sulphate, which is a/an

Deacon's method is used for the manufacture of

Linde process of gas liquefaction employs

In nylon-66, the first and second numbers (i.e., 6) respectively designate the number of carbon atoms present in the

Lindane is

Which of the following may be viewed as a catalyst in the manufacture of soda ash by Solvay process?

Sucrose content in the raw juice extracted from sugar cane is about __________ percent.

Cellulose percentage in bamboo fibre is about

Glass is

Average sulphur content in Indian pyrites is about __________ percent.

Ultimate analysis of coal determines its __________ content.

Bakelite is chemically known as

Mercury electrolytic cells are preferred over diaphragm electrolytic cell (for production of caustic soda), as it

Which of the following is the most adverse factor challenging the choice of mercury electrolytic cell process for the production of caustic soda?

Dry ice (solidified CO₂) is used for the

Vegetable oils contain large quantity of glycerides of unsaturated acids. When the vegetable oils contain high amount of saturated fatty acids, it is termed as __________ oil.

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

Chalcopyrite is the main ore of

Glauber's salt is chemically represented by

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

In multistage equilibrium conversion of SO₂ to SO₃ (2SO₂ + O₂ 2SO₃), the reverse reaction becomes appreciable at a temperature of 550° C. The percentage equilibrium conversion of SO₂ to SO₃ can be increased by

Frasch process is for

Kaolin is a/an

Dechlorination of treated water is necessary to

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

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

Industrial production of chloroform requires acetone and

Which of the following is the main constituent of the mother liquor produced in salt industry?

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

Also checkout

Enzymes are organic catalysts used in the __________ reactions.

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Iron ore hematite is concentrated using

Exothermic neutralisation reaction between caustic soda and dodecylbenzene sulfonic acid produces sodium dodecylbenzene sulphate, which is a/an

Deacon's method is used for the manufacture of

Linde process of gas liquefaction employs

In nylon-66, the first and second numbers (i.e., 6) respectively designate the number of carbon atoms present in the

Lindane is

Which of the following may be viewed as a catalyst in the manufacture of soda ash by Solvay process?

Sucrose content in the raw juice extracted from sugar cane is about __________ percent.

Cellulose percentage in bamboo fibre is about

Glass is

Average sulphur content in Indian pyrites is about __________ percent.

Ultimate analysis of coal determines its __________ content.

Bakelite is chemically known as

Mercury electrolytic cells are preferred over diaphragm electrolytic cell (for production of caustic soda), as it

Which of the following is the most adverse factor challenging the choice of mercury electrolytic cell process for the production of caustic soda?

Dry ice (solidified CO2) is used for the

Vegetable oils contain large quantity of glycerides of unsaturated acids. When the vegetable oils contain high amount of saturated fatty acids, it is termed as __________ oil.

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

Chalcopyrite is the main ore of

Glauber's salt is chemically represented by

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

In multistage equilibrium conversion of SO2 to SO3 (2SO2 + O2 2SO3), the reverse reaction becomes appreciable at a temperature of 550° C. The percentage equilibrium conversion of SO2 to SO3 can be increased by

Frasch process is for

Kaolin is a/an

Dechlorination of treated water is necessary to

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

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

Industrial production of chloroform requires acetone and

Which of the following is the main constituent of the mother liquor produced in salt industry?

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

Also checkout

Dry ice (solidified CO₂) is used for the

In multistage equilibrium conversion of SO₂ to SO₃ (2SO₂ + O₂ 2SO₃), the reverse reaction becomes appreciable at a temperature of 550° C. The percentage equilibrium conversion of SO₂ to SO₃ can be increased by