Commercially ethylene is produced from naphtha by

Question

Commercially ethylene is produced from naphtha by

A. Catalytic cracking

B. Catalytic dehydrogenation

C. Pyrolysis

D. Hydrocracking

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Double Contact Double Absorption (DCDA) process is the most recent process for the manufacture of

A. Nitric acid

B. Sulphuric acid

C. Ammonium sulphate

D. Hydrochloric acid

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The purpose of tanning in leather industry is to

A. Stiffen the leather

B. Smoothen the leather

C. Make it flexible

D. Impart water resistance

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Process conditions in fermentator used for production of penicillin is

A. 25°C, 2 atm

B. 50°C, l0 atm

C. 30°C, 200 mm Hg (absolute)

D. 90°C, 45 atm

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Nitric acid is not used in the manufacture of

A. Detergents

B. Fertilisers

C. Aqua regia

D. Explosives

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Wax is a

A. Mixture of glycerides

B. Mixture of esters of polyhydric alcohols excepting glycerine

C. Liquid at room temperature

D. Mixture of glycerides of fatty acids

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Commonly used glass is known as the __________ glass.

A. Flint

B. Hard

C. Pyrex

D. Soda

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__________ paper is used in the manufacture of newsprint paper.

A. Ground-wood

B. Board

C. Tissue

D. Wrapping

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One of the steps during refining of cane sugar consists of addition of hydrated lime to the sugar syrup followed by carbonation of the resulting solution. The purpose of this step is to

A. Adjust the pH of the syrup

B. Remove the coloring matter from the syrup

C. Reduce the viscosity of the syrup

D. Improve the rate of crystallisation of sugar

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A 'unit process' is exemplified by the

A. Distillation

B. Hydrogenation of oils

C. Absorption

D. Humidification

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Chemical formula of BHC, which is an insecticide is

A. C₆H₆Cl₆

B. C₆Cl₆

C. C₆H₅Cl

D. C₆H₄Cl₂

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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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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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Alum [Al₂(SO₄)₃] is used as a coagulant in water treatment to remove

A. Colour

B. Turbidity

C. Bacteria

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

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Hydrogen gas is not produced commercially (for nitrogenous fertiliser manufacture) by

A. Iron-steam reaction

B. Electrolysis of water

C. Steam reforming of naphtha

D. Its cryogenic separation from coke oven gas

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Which of the following is a constituent of coffee?

A. Caffeine

B. Nicotine

C. Calgon

D. Lignin

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Neoprene is a

A. Monomer

B. Synthetic rubber

C. Polyester

D. None of these

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During the absorption of HCl gas in water (to produce liquid HCl), the gas is kept above dew point to

A. Increase the rate of absorption

B. Avoid corrosion

C. Reduce the cooling water circulation rate

D. None of these

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Carbon content of pitch (residue of coal tar distillation) is around __________ percent.

A. 70

B. 55

C. 80

D. 94

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Setting of plaster of Paris is accompanied with

A. Hydration

B. Dehydration

C. Hydrolysis

D. Loss of CO₂

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Which is a high grade pulp?

A. Rag pulp

B. Mechanical pulp

C. Sulphate pulp

D. Sulphite pulp

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Which of the following is not an abrasive material?

A. Bakelite

B. Pumice

C. Corundum

D. Carborundum

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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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DDT stands for

A. Diethyl-diphenyl-trichloromethane

B. Dichloro-diphenyl-trichloromethane

C. diphenyl-dichloro-trichloromethane

D. Dichloro-diphenyl-trichloroethane

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Pitch (a product of coal tar distillation) is always mixed with creosote oil, when it is to be burnt in a burner, because

A. Its calorific value is very less

B. Tar neutralises the residual acids present in pitch

C. It reduces viscosity and imparts fluidity for its transportation through pipelines at economic pressure drop

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

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Chemical formula of oleum is

A. H₂SO₃

B. H₂SO₄

C. H₂S₂O₇

D. H₂SO₇

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Polycaprolactam is commercially known as

A. Nylon-6

B. Nylon-66

C. Dacron

D. Rayon

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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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__________ process is used for producing soda ash.

A. Chamber

B. Chance

C. Tromp

D. Solvay

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An alkali metal salt of Palmitic acid is known as

A. Soap

B. Metallic soap

C. Detergent

D. Alkaloid

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Coke used for the production of calcium carbide should have

A. Low ash content

B. Low ignition temperature

C. High electrical resistivity

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

Discuss this answer

Accepted Answer

D. Hydrocracking

Commercially ethylene is produced from naphtha by

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Double Contact Double Absorption (DCDA) process is the most recent process for the manufacture of

The purpose of tanning in leather industry is to

Process conditions in fermentator used for production of penicillin is

Nitric acid is not used in the manufacture of

Wax is a

Commonly used glass is known as the __________ glass.

__________ paper is used in the manufacture of newsprint paper.

One of the steps during refining of cane sugar consists of addition of hydrated lime to the sugar syrup followed by carbonation of the resulting solution. The purpose of this step is to

A 'unit process' is exemplified by the

Chemical formula of BHC, which is an insecticide is

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.).

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

Alum [Al₂(SO₄)₃] is used as a coagulant in water treatment to remove

Hydrogen gas is not produced commercially (for nitrogenous fertiliser manufacture) by

Which of the following is a constituent of coffee?

Neoprene is a

During the absorption of HCl gas in water (to produce liquid HCl), the gas is kept above dew point to

Carbon content of pitch (residue of coal tar distillation) is around __________ percent.

Setting of plaster of Paris is accompanied with

Which is a high grade pulp?

Which of the following is not an abrasive material?

High purity nitrogen is used in

DDT stands for

Pitch (a product of coal tar distillation) is always mixed with creosote oil, when it is to be burnt in a burner, because

Chemical formula of oleum is

Polycaprolactam is commercially known as

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

__________ process is used for producing soda ash.

An alkali metal salt of Palmitic acid is known as

Coke used for the production of calcium carbide should have

Also checkout

Commercially ethylene is produced from naphtha by

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Double Contact Double Absorption (DCDA) process is the most recent process for the manufacture of

The purpose of tanning in leather industry is to

Process conditions in fermentator used for production of penicillin is

Nitric acid is not used in the manufacture of

Wax is a

Commonly used glass is known as the __________ glass.

__________ paper is used in the manufacture of newsprint paper.

One of the steps during refining of cane sugar consists of addition of hydrated lime to the sugar syrup followed by carbonation of the resulting solution. The purpose of this step is to

A 'unit process' is exemplified by the

Chemical formula of BHC, which is an insecticide is

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.).

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

Alum [Al2(SO4)3] is used as a coagulant in water treatment to remove

Hydrogen gas is not produced commercially (for nitrogenous fertiliser manufacture) by

Which of the following is a constituent of coffee?

Neoprene is a

During the absorption of HCl gas in water (to produce liquid HCl), the gas is kept above dew point to

Carbon content of pitch (residue of coal tar distillation) is around __________ percent.

Setting of plaster of Paris is accompanied with

Which is a high grade pulp?

Which of the following is not an abrasive material?

High purity nitrogen is used in

DDT stands for

Pitch (a product of coal tar distillation) is always mixed with creosote oil, when it is to be burnt in a burner, because

Chemical formula of oleum is

Polycaprolactam is commercially known as

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

__________ process is used for producing soda ash.

An alkali metal salt of Palmitic acid is known as

Coke used for the production of calcium carbide should have

Also checkout

Alum [Al₂(SO₄)₃] is used as a coagulant in water treatment to remove