Most commonly used rubber vulcanising agent is

Question

Most commonly used rubber vulcanising agent is

A. Sulphur

B. Bromine

C. Platinum

D. Alumina

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Nylon-66 is so named because the

A. Average degree of polymerisation of the polymer is 1966

B. Number of carbon atoms between two nitrogen atoms are 6

C. Number of nitrogen atoms between two carbon atoms are 6

D. Polymer was first synthesised in 1966

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Triple superphosphate is manufactured by reacting

A. Phosphate rock with phosphoric acid

B. Phosphate rock with sulphuric acid

C. Phosphate rock with nitric acid

D. Ammonium phosphate with phosphoric acid

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Higher viscosity index of a lubricating oil denotes

A. Less changes in fluidity of oil with temperature

B. Substantially high change in fluidity of oil with temperature

C. Its unsuitability under varying temperature conditions

D. None of these

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Absorption of SO3 in 97% H2SO4 is

A. Exothermic

B. Endothermic

C. Not possible

D. None of these

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For the hydrogenation of oils, (i) is commonly used as catalyst and (ii) is a catalyst poison.

A. (i) platinum (ii) sulphur

B. (i) palladium (ii) oxygen

C. (i) nickel (ii) sulphur

D. (i) nickel (ii) oxygen

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Bordeaux mixture is a/an

A. Fertiliser

B. Inorganic fungicide

C. Insecticide

D. Explosive

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Fatty material used in soap making is

A. Fatty acid

B. Fatty alcohols

C. Tallow

D. Detergents

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Ethanol amine is produced using ammonia and

A. Ethyl benzene

B. Ethylene oxide

C. Ethanol

D. Ethane

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Oxygen is separated by distillation from air after its liquefaction. The boiling point of oxygen is about __________ °C.

A. -83

B. -183

C. -196

D. -218

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Sucrose is a

A. Monosaccharide

B. Disaccharide

C. Polysaccharide

D. None of these

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Nitrogen is an essential component of

A. Mineral salts

B. Carbohydrates

C. Fats

D. Proteins

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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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__________ is used as a catalyst in fat splitting.

A. ZnO

B. Ni

C. V₂O₅

D. FeO

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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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Cement setting under water employs a/an __________ process.

A. Hydration

B. Decomposition

C. Oxidation

D. Reduction

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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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Aryl benzene sulphonate (ABS) is a

A. Detergent

B. Plasticiser for unsaturated polyester

C. Starting material for the synthesis of glycerine

D. Coating ingredient for photographic film

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Phenol formaldehyde is produced by condensation polymerisation. It is also known as

A. Teflon

B. Bakelite

C. Polyester

D. Nylon-66

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Producer gas consists mainly of

A. CO, CO₂ N₂, H₂

B. CO, H₂

C. H₂, CH₄

D. C₂H₂, CO₂, H₂

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A good quality coal should have

A. Low fusion point of ash

B. High ash content

C. High sulphur content

D. None of these

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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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Deaeration of water in its treatment is necessary, as it

A. Minimises its turbidity

B. Helps in controlling its taste and odour

C. Minimises its corrosiveness

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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Calcination of limestone is not done in a __________ kiln for producing lime.

A. Vertical shaft

B. Rotary

C. Fluidised bed

D. Fixed bed

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Production of one ton of cement requires about __________ tons of limestone.

A. 0.6

B. 1.2

C. 2.2

D. 3.8

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Mercury electrolytic cell produces 50-70% NaOH solution. Its operating temperature is __________ °C.

A. 25

B. 60-70

C. 150-200

D. 250-300

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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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Paper pulp produced by Kraft/sulphate process is

A. Bleached easily

B. Dull white in color

C. Strong fibrous

D. Dark colored

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99.5% purity oxygen is used in

A. Cutting and welding by oxy-acetylene flame

B. Hospitals for medicinal purposes

C. Gas masks and artificial breathing apparatus

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

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Nickel is not used as a catalyst in the __________ reaction.

A. Shift conversion

B. Oil hydrogenation

C. Steaming reforming of naphtha

D. Ammonia cracking/dissociation

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Accepted Answer

A. Sulphur

Most commonly used rubber vulcanising agent is

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Nylon-66 is so named because the

Triple superphosphate is manufactured by reacting

Higher viscosity index of a lubricating oil denotes

Absorption of SO3 in 97% H2SO4 is

For the hydrogenation of oils, (i) is commonly used as catalyst and (ii) is a catalyst poison.

Bordeaux mixture is a/an

Fatty material used in soap making is

Ethanol amine is produced using ammonia and

Oxygen is separated by distillation from air after its liquefaction. The boiling point of oxygen is about __________ °C.

Sucrose is a

Nitrogen is an essential component of

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

__________ is used as a catalyst in fat splitting.

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

Cement setting under water employs a/an __________ process.

Dechlorination of treated water is necessary to

Aryl benzene sulphonate (ABS) is a

Phenol formaldehyde is produced by condensation polymerisation. It is also known as

Producer gas consists mainly of

A good quality coal should have

Hydrogenation of oil does not

Deaeration of water in its treatment is necessary, as it

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

Calcination of limestone is not done in a __________ kiln for producing lime.

Production of one ton of cement requires about __________ tons of limestone.

Mercury electrolytic cell produces 50-70% NaOH solution. Its operating temperature is __________ °C.

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

Paper pulp produced by Kraft/sulphate process is

99.5% purity oxygen is used in

Nickel is not used as a catalyst in the __________ reaction.

Also checkout

Most commonly used rubber vulcanising agent is

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Nylon-66 is so named because the

Triple superphosphate is manufactured by reacting

Higher viscosity index of a lubricating oil denotes

Absorption of SO3 in 97% H2SO4 is

For the hydrogenation of oils, __________ (i) __________ is commonly used as catalyst and __________ (ii) __________ is a catalyst poison.

Bordeaux mixture is a/an

Fatty material used in soap making is

Ethanol amine is produced using ammonia and

Oxygen is separated by distillation from air after its liquefaction. The boiling point of oxygen is about __________ °C.

Sucrose is a

Nitrogen is an essential component of

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

__________ is used as a catalyst in fat splitting.

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

Cement setting under water employs a/an __________ process.

Dechlorination of treated water is necessary to

Aryl benzene sulphonate (ABS) is a

Phenol formaldehyde is produced by condensation polymerisation. It is also known as

Producer gas consists mainly of

A good quality coal should have

Hydrogenation of oil does not

Deaeration of water in its treatment is necessary, as it

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

Calcination of limestone is not done in a __________ kiln for producing lime.

Production of one ton of cement requires about __________ tons of limestone.

Mercury electrolytic cell produces 50-70% NaOH solution. Its operating temperature is __________ °C.

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

Paper pulp produced by Kraft/sulphate process is

99.5% purity oxygen is used in

Nickel is not used as a catalyst in the __________ reaction.

Also checkout

For the hydrogenation of oils, (i) is commonly used as catalyst and (ii) is a catalyst poison.

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