Starting material for the production of butadiene in India is

Question

Starting material for the production of butadiene in India is

A. Naphthalene

B. Benzol

C. Ethyl alcohol

D. Phthalic anhydride

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Comment

Detergent is produced by the sulphonation of dodecyl benzene, which is an __________ reaction.

A. Endothermic

B. Exothermic

C. Irreversible

D. Both (B) and (C)

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Caprolactam (a raw material for nylon-6 manufacture) is produced from

A. Phenol

B. Naphthalene

C. Benzene

D. Pyridine

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The type of high refractive index glass used in optical instruments is __________ glass.

A. Pyrex

B. Flint

C. Crookes

D. None of these

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Addition of calcium oxide to water produces

A. Exothermic heat

B. Hissing sound

C. Slaked lime

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

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Oils are partially hydrogenated (not fully) to manufacture Vanaspati, because fully saturated solidified oils

A. Cause cholesterol build up and blood clotting

B. Are prone to rancid oxidation

C. Always contain some amount of nickel (as their complete removal is very difficult)

D. Have affinity to retain harmful sulphur compounds

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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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Nickel is not used as a catalyst in the

A. Fischer-Tropsch process

B. Shift conversion

C. Hydrogenation of oil

D. Ostwald's process of HNO3 manufacture

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Poly Tetrafluoroethylene (P.T.F.E.) is known as

A. Bakelite

B. Teflon

C. Celluloid

D. Dacron

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Permanent hardness of water can be removed by

A. Boiling

B. Adding Ca(OH)₂

C. Boiling it with Na₂CO₃

D. None of these

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Maleic anhydride is produced by catalytic oxidation of

A. Toluene

B. Ethyl alcohol

C. Naphthalene

D. Benzene

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Nitro-glycerine absorbed in wood flour, sodium nitrate or ammonium nitrate is commercially used as controlled explosive called dynamite. The raw material used for its manufacture are glycerine, nitric acid and

A. Sulphuric acid

B. Phosphoric acid

C. Hydrochloric acid

D. Hydrofluoric 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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Phenolic antiseptics are added in the __________ soap.

A. Shaving

B. Medicated

C. Metallic

D. Transparent

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__________ is used as a flux in the smelting of copper ore like chalcopyrite.

A. Coke breeze

B. Lime powder

C. Silica/quartz

D. Dolomite

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Conversion of CO to CO2 by steam in presence of a catalyst is called

A. Steam reforming

B. Shift conversion

C. Steam gasification

D. None of these

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Cement setting under water employs a/an __________ process.

A. Hydration

B. Decomposition

C. Oxidation

D. Reduction

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Cellulose percentage in bamboo fibre is about

A. 10

B. 20

C. 50

D. 85

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Alcohol content in freshly prepared natural and fortified wine may be respectively around __________ percent.

A. 7-14 and 14-30

B. 7-14 and 40-50

C. 14 - 30 and 40-50

D. 10 - 20 and 40 - 50

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The most widely used coagulant for removing suspended impurities from water is

A. Bleaching powder

B. Chlorine

C. Calcium sulphate

D. Alum

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Dense soda ash used in the manufacture of glass, is chemically represented by

A. Na₂CO₃

B. Na₂CO₃.10H₂O

C. Na₂CO₃.H₂O

D. Na₂HCO₃

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Starting raw material for the manufacture of Maleic anhydride is

A. n-butene

B. Benzene

C. Either (A) or (B)

D. Neither (A) nor (B)

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Coagulant is used __________ filtration.

A. Before

B. After

C. During

D. To avoid

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Viscosity index improver (like polystyrene or polyisobutylene) is added to lubricant to

A. Reduce its viscosity

B. Increase its viscosity

C. Reduce the variation in its viscosity with temperature

D. Increase the variation in its viscosity with temperature

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Permanent hardness of water can be removed by

A. Addition of soda ash to it

B. Treating it with zeolites

C. Passing it through sodium hexametaphosphate

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

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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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Molasses is the starting material for the production of

A. Alcohol

B. Essential oil

C. Fatty acids

D. Massecuite

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Manufacture of phthalic anhydride uses __________ as a catalyst.

A. Ni

B. Cr

C. V₂O₅

D. Al₂O₃

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Hydrolysis of sugar is called

A. Hydration

B. Inversion

C. Esterification

D. None of these

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Fumigant insecticides

A. Kill insects, when they eat it

B. Emit poisonous vapour

C. Are absorbed throughout the plant

D. None of these

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Which of the following, when pyrolysed, produces Perchloroethylene?

A. Ethylene dichloride

B. Chlorobenzene

C. Carbon tetrachloride

D. Chlorinated paraffin

Discuss this answer

Accepted Answer

C. Ethyl alcohol

Starting material for the production of butadiene in India is

Correct Answer :

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Related Questions

Detergent is produced by the sulphonation of dodecyl benzene, which is an __________ reaction.

Caprolactam (a raw material for nylon-6 manufacture) is produced from

The type of high refractive index glass used in optical instruments is __________ glass.

Addition of calcium oxide to water produces

Oils are partially hydrogenated (not fully) to manufacture Vanaspati, because fully saturated solidified oils

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

Nickel is not used as a catalyst in the

Poly Tetrafluoroethylene (P.T.F.E.) is known as

Permanent hardness of water can be removed by

Maleic anhydride is produced by catalytic oxidation of

Nitro-glycerine absorbed in wood flour, sodium nitrate or ammonium nitrate is commercially used as controlled explosive called dynamite. The raw material used for its manufacture are glycerine, nitric acid and

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

Phenolic antiseptics are added in the __________ soap.

__________ is used as a flux in the smelting of copper ore like chalcopyrite.

Conversion of CO to CO2 by steam in presence of a catalyst is called

Cement setting under water employs a/an __________ process.

Cellulose percentage in bamboo fibre is about

Alcohol content in freshly prepared natural and fortified wine may be respectively around __________ percent.

The most widely used coagulant for removing suspended impurities from water is

Dense soda ash used in the manufacture of glass, is chemically represented by

Starting raw material for the manufacture of Maleic anhydride is

Coagulant is used __________ filtration.

Viscosity index improver (like polystyrene or polyisobutylene) is added to lubricant to

Permanent hardness of water can be removed by

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

Molasses is the starting material for the production of

Manufacture of phthalic anhydride uses __________ as a catalyst.

Hydrolysis of sugar is called

Fumigant insecticides

Which of the following, when pyrolysed, produces Perchloroethylene?

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