Neoprene is chemically known as

Question

Neoprene is chemically known as

A. Polybutadiene

B. Styrene butadiene rubber (SBR)

C. Polyurethane

D. Polychlorophrene

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Exothermic condensation reaction of monochlorobenzene with chloral in presence of 20% oleum as catalyst produces DDT. The reaction temperature is maintained at __________ °C.

A. 15-30

B. 90-100

C. 250-300

D. < 0

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Which of the following is not a product of coal tar distillation?

A. Anthracene

B. Creosote oil

C. Carbolic oil

D. None of these

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Pick out the wrong statement pertaining to solvent extraction of oil. Rate of extraction

A. Decreases with decrease of thickness of the flakes

B. Increases with the increasing flake size keeping the flake thickness constant

C. Increases considerably with the rise of temperature

D. Decreases as the moisture content of flakes increases

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Enzymes are

A. Proteins with high molecular weight (around 10,000)

B. Derived from living organisms

C. Catalyst for temperature sensitive reactions

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

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Which of the following is not produced on commercial scale from sea water?

A. Bromine

B. Magnesium compounds

C. Potassium compounds

D. Sodium sulphate

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Multistage catalytic converter is not used in the

A. Conversion of SO2 to SO3

B. NH3 synthesis reaction

C. Both (A) and (B)

D. Neither (A) nor (B)

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Which of the following coals has the highest calorific value?

A. Lignite

B. Sub-bituminous

C. Anthracite

D. Peat

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Cellulose percentage in bamboo fibre is about

A. 10

B. 20

C. 50

D. 85

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Neoprene is a

A. Monomer

B. Synthetic rubber

C. Polyester

D. None of these

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

A. Alum

B. Washing soda

C. Soda ash

D. Calcium carbide

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A cane sugar factory having sugar production rate of 10 tons/day will produce about __________ tons/day of bagasse (after consumption by the factory for heating etc.).

A. 1

B. 10

C. 25

D. 40

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Stereospecific agents are exemplified by

A. Radiation

B. Supported metal oxide catalysts

C. Ziegler catalysts

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

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Nitrogen is an essential component of

A. Mineral salts

B. Carbohydrates

C. Fats

D. Proteins

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Which of the following processes is absent in glass manufacturing process?

A. Sintering

B. Annealing

C. Shaping or forming

D. Melting

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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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The main aim behind cooling the digested chip at the bottom portion of the digestor by injecting cold black liquor is to

A. Avoid mechanical weakening of fibre

B. Remove lignin by way of crystallisation

C. Increase the cellulose content

D. None of these

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Salt cake is chemically represented by

A. Na₂SO₄

B. CaSO₄. ½H₂O

C. MgSO₄

D. BaSO₄

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The main component of Pyrex glass is

A. Zinc

B. Lead

C. Boron

D. Selenium

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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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Starting material for the production of styrene butadiene rubber (SBR) is

A. Ethyl alcohol

B. Ethylene

C. Both (A) & (B)

D. Neither (A) nor (B)

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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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Shrinkage volume in cement setting does not depend upon the

A. Sand to cement ratio

B. Water to cement ratio

C. Ambient temperature fluctuation

D. Drying period

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Fat splitting catalyst is

A. CaCO₃

B. ZnO

C. Al₂O₃

D. Fe

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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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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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The most economical pulp for the production of newsprint would be the __________ pulp.

A. Ground-wood

B. Sulphate

C. Sulphite

D. Semi-chemical

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Molecular weights of polymers are in the range of

A. 10² - 10²

B. 10⁵ - 10⁹

C. 10² - 10⁷

D. 10⁹ - 10¹¹

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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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__________ is a thermosetting plastic.

A. Polythene

B. Epoxy polymer

C. P.V.C.

D. Polystyrene

Discuss this answer

Accepted Answer

D. Polychlorophrene

Neoprene is chemically known as

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Exothermic condensation reaction of monochlorobenzene with chloral in presence of 20% oleum as catalyst produces DDT. The reaction temperature is maintained at __________ °C.

Which of the following is not a product of coal tar distillation?

Pick out the wrong statement pertaining to solvent extraction of oil. Rate of extraction

Enzymes are

Which of the following is not produced on commercial scale from sea water?

Multistage catalytic converter is not used in the

Which of the following coals has the highest calorific value?

Cellulose percentage in bamboo fibre is about

Neoprene is a

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

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

A cane sugar factory having sugar production rate of 10 tons/day will produce about __________ tons/day of bagasse (after consumption by the factory for heating etc.).

Stereospecific agents are exemplified by

Nitrogen is an essential component of

Which of the following processes is absent in glass manufacturing process?

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

The main aim behind cooling the digested chip at the bottom portion of the digestor by injecting cold black liquor is to

Salt cake is chemically represented by

The main component of Pyrex glass is

Rancidity of the fatty oil can be reduced by its

Starting material for the production of styrene butadiene rubber (SBR) is

Concentration of sulphide ores is done usually by

Shrinkage volume in cement setting does not depend upon the

Fat splitting catalyst is

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.

Thermosetting materials

The most economical pulp for the production of newsprint would be the __________ pulp.

Molecular weights of polymers are in the range of

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

__________ is a thermosetting plastic.

Also checkout

Neoprene is chemically known as

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Exothermic condensation reaction of monochlorobenzene with chloral in presence of 20% oleum as catalyst produces DDT. The reaction temperature is maintained at __________ °C.

Which of the following is not a product of coal tar distillation?

Pick out the wrong statement pertaining to solvent extraction of oil. Rate of extraction

Enzymes are

Which of the following is not produced on commercial scale from sea water?

Multistage catalytic converter is not used in the

Which of the following coals has the highest calorific value?

Cellulose percentage in bamboo fibre is about

Neoprene is a

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

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

A cane sugar factory having sugar production rate of 10 tons/day will produce about __________ tons/day of bagasse (after consumption by the factory for heating etc.).

Stereospecific agents are exemplified by

Nitrogen is an essential component of

Which of the following processes is absent in glass manufacturing process?

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

The main aim behind cooling the digested chip at the bottom portion of the digestor by injecting cold black liquor is to

Salt cake is chemically represented by

The main component of Pyrex glass is

Rancidity of the fatty oil can be reduced by its

Starting material for the production of styrene butadiene rubber (SBR) is

Concentration of sulphide ores is done usually by

Shrinkage volume in cement setting does not depend upon the

Fat splitting catalyst is

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.

Thermosetting materials

The most economical pulp for the production of newsprint would be the __________ pulp.

Molecular weights of polymers are in the range of

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

__________ is a thermosetting plastic.

Also checkout

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