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

Question

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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Cation exchanger is regenerated usually with

A. NaOH

B. H₂SO₄

C. Hydrazine

D. Alum solution

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__________ glass is used for the manufacture of optical glass.

A. Pyrex

B. Soda

C. Flint

D. Crooke's

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Argon is the third largest constituent of air (followed by N₂ & O₂). Its percentage by volume in air is

A. 0.14

B. 0.34

C. 0.94

D. 1.4

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Neoprene is chemically known as

A. Polybutadiene

B. Styrene butadiene rubber (SBR)

C. Polyurethane

D. Polychlorophrene

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Bromides contained in hot mother liquor is treated with __________ during manufacture of bromine from sea water.

A. SO₃

B. Cl₂

C. NH₃

D. SO₂

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Chalcopyrite is the main ore of

A. Copper

B. Lead

C. Tin

D. Iron

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Most easily and cheaply available fibrous raw material for paper manufacture available in India is bamboo. The yield of pulp produced from fibrous raw material by mechanical process is about __________ percent.

A. 75

B. < 10

C. > 30

D. 50

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Pick out the wrong statement. Iodine value of an oil or fat is

A. The number of grams of iodine taken up by 100 gm of oil or fat

B. A measure of its unsaturation

C. Helpful in findings its adulteration & its suitability for making soap

D. Independent of the type of oil, whether it is drying or non-drying

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The most popular and common detergent i.e., alkyl benzene sulfonate (ABS) is a/an __________ detergent.

A. Cationic

B. Anionic

C. Amphoteric

D. Semi polar

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Le-Blanc process is a primitive process for the manufacture of

A. Caustic soda

B. Soda ash

C. Bromine from sea water

D. Hydrochloric acid

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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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In contact process, SO₃ is absorbed in 97% H₂SO₄ and not in water, because

A. SO₃ gas is sparingly soluble in water

B. Water forms an acid mist, which is difficult to absorb

C. The purity of acid is affected

D. Scale formation in the absorber is to be avoided

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Which of the following is not a pyrite ore?

A. Celestite

B. Galena

C. Gypsum

D. Siderite

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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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Which of the following is a co-product during the manufacture of caustic soda by electrolysis of brine?

A. Na₂CO₃

B. NaHCO₃

C. H₂

D. None of these

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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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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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Economics of 'Solvay Process' depends upon the efficiency of

A. Carbonating tower

B. Ammonia recovery

C. Ammonia recovery and size of the plant

D. Ammoniation of salt solution

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Helium is produced on commercial scale from

A. Air

B. Natural gas

C. Coke oven gas

D. None of these

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Nylon-66 is manufactured from

A. Hexamethylene diamine and adipic acid

B. Hexamethylene diamine and Maleic anhydride

C. Caprolactam

D. Dimethyl terephthalate and ethylene glycol

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The end bleaching agent used to move last traces of colour bodies from the pulp is

A. Chlorine dioxide (ClO₂)

B. MgO

C. SO₂ gas

D. Mercaptans

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The only commercial Fischer-Tropsch plant for producing liquid hydrocarbon fuel from coal is located at

A. SASOL (in South Africa)

B. Redcar (U.K.)

C. Los Angeles (U.S.A.)

D. Trombay (India)

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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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Vinyl chloride (CH2 = CH.Cl) is produced by the thermal pyrolysis of ethylene dichloride at a pressure & temperature of

A. 4 kgf/cm² & 500°C

B. 10 kgf/cm² & 1000°C

C. 40 kg/cm² & 200°C

D. 100 kgf/cm² & 500°C

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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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Thermoplastic materials

A. Do not soften on application of heat

B. Are heavily branched molecules

C. Are solvent insoluble

D. None of these

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Sodium bisulphite is used for __________ water.

A. Deaeration

B. Dechlorination

C. Both (A) & (B)

D. Neither (A) nor (B)

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Neoprene is a

A. Monomer

B. Synthetic rubber

C. Polyester

D. None of these

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CaCl(OCl) is the chemical formula of

A. Hypo

B. Bleaching powder

C. Plaster of Paris

D. Aqua regia

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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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Accepted Answer

A. Catalytic dehydrogenation of ethyl benzene

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

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Cation exchanger is regenerated usually with

__________ glass is used for the manufacture of optical glass.

Argon is the third largest constituent of air (followed by N₂ & O₂). Its percentage by volume in air is

Neoprene is chemically known as

Bromides contained in hot mother liquor is treated with __________ during manufacture of bromine from sea water.

Chalcopyrite is the main ore of

Most easily and cheaply available fibrous raw material for paper manufacture available in India is bamboo. The yield of pulp produced from fibrous raw material by mechanical process is about __________ percent.

Pick out the wrong statement. Iodine value of an oil or fat is

The most popular and common detergent i.e., alkyl benzene sulfonate (ABS) is a/an __________ detergent.

Le-Blanc process is a primitive process for the manufacture of

Hydrogenation of oil does not

In contact process, SO₃ is absorbed in 97% H₂SO₄ and not in water, because

Which of the following is not a pyrite ore?

Ultimate analysis of coal determines its __________ content.

Which of the following is a co-product during the manufacture of caustic soda by electrolysis of brine?

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

Enzymes are

Economics of 'Solvay Process' depends upon the efficiency of

Helium is produced on commercial scale from

Nylon-66 is manufactured from

The end bleaching agent used to move last traces of colour bodies from the pulp is

The only commercial Fischer-Tropsch plant for producing liquid hydrocarbon fuel from coal is located at

High purity nitrogen is used in

Vinyl chloride (CH2 = CH.Cl) is produced by the thermal pyrolysis of ethylene dichloride at a pressure & temperature of

Commercially ethylene is produced from naphtha by

Thermoplastic materials

Sodium bisulphite is used for __________ water.

Neoprene is a

CaCl(OCl) is the chemical formula of

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

Also checkout

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

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Cation exchanger is regenerated usually with

__________ glass is used for the manufacture of optical glass.

Argon is the third largest constituent of air (followed by N2 & O2). Its percentage by volume in air is

Neoprene is chemically known as

Bromides contained in hot mother liquor is treated with __________ during manufacture of bromine from sea water.

Chalcopyrite is the main ore of

Most easily and cheaply available fibrous raw material for paper manufacture available in India is bamboo. The yield of pulp produced from fibrous raw material by mechanical process is about __________ percent.

Pick out the wrong statement. Iodine value of an oil or fat is

The most popular and common detergent i.e., alkyl benzene sulfonate (ABS) is a/an __________ detergent.

Le-Blanc process is a primitive process for the manufacture of

Hydrogenation of oil does not

In contact process, SO3 is absorbed in 97% H2SO4 and not in water, because

Which of the following is not a pyrite ore?

Ultimate analysis of coal determines its __________ content.

Which of the following is a co-product during the manufacture of caustic soda by electrolysis of brine?

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

Enzymes are

Economics of 'Solvay Process' depends upon the efficiency of

Helium is produced on commercial scale from

Nylon-66 is manufactured from

The end bleaching agent used to move last traces of colour bodies from the pulp is

The only commercial Fischer-Tropsch plant for producing liquid hydrocarbon fuel from coal is located at

High purity nitrogen is used in

Vinyl chloride (CH2 = CH.Cl) is produced by the thermal pyrolysis of ethylene dichloride at a pressure & temperature of

Commercially ethylene is produced from naphtha by

Thermoplastic materials

Sodium bisulphite is used for __________ water.

Neoprene is a

CaCl(OCl) is the chemical formula of

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

Also checkout

Argon is the third largest constituent of air (followed by N₂ & O₂). Its percentage by volume in air is

In contact process, SO₃ is absorbed in 97% H₂SO₄ and not in water, because

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