Nylon-66 is so named because the

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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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Enamels

A. Give good glossy finish

B. Are same as varnish

C. Are prepared from non-drying oil

D. Do not contain pigment

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

A. Bakelite

B. Teflon

C. Celluloid

D. Dacron

Discuss this answer

Glycerine is a by-product of the __________ industry.

A. Soap

B. Detergent

C. Oil hydrogenation

D. Paint

Discuss this answer

Major component of flint glass is

A. Lead oxide

B. Silica

C. Alumina

D. Soda

Discuss this answer

Most widely and commonly used coagulant for the removal of suspended impurities in water is

A. Bleaching powder

B. Slaked lime

C. Alum

D. Copper sulphate

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Teflon is

A. Phenol formaldehyde

B. An inorganic polymer

C. Poly tetra-fluoro-ethylene (P.T.F.E.)

D. A monomer

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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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Fermentation is adversely affected by the

A. Presence of air

B. Absence of air

C. High concentration

D. Presence of ammonium salts

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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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Solvent extracted oil

A. Has low free fatty acid content

B. Is odourless

C. Has more of unsaturates

D. None of these

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__________ is the major constituent of the Portland cement.

A. Calcium carbonate

B. Calcium oxide

C. Tricalcium silicate

D. Calcium sulphate

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Pure rectified spirit contains about __________ percent alcohol.

A. 45

B. 70

C. 95

D. 99.5

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Rosin soap is added during paper manufacture to

A. Impart adhesive properties

B. Improve opacity

C. Impart resistance to penetration by liquids

D. None of these

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Which oil is preferred for paint manufacture?

A. Drying oil

B. Non-drying oil

C. Semi-drying oil

D. Saturated oil

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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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Yellow phosphorus is transported under

A. Air

B. Water

C. Nitrogen

D. Helium

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Which of the following is used as a coagulant in water treatment?

A. Chloramine

B. Chlorine

C. Ferrous sulphate

D. Hydrogen peroxide

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Dehydrogenation of Isopropanol produces

A. Propyl alcohol

B. Acetone

C. Trichloroethylene

D. Formaldehyde

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Systemic insecticides

A. Are absorbed throughout the plant

B. Kill insects following external bodily contact

C. Are stomach poisons

D. Emit poisonous vapour

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The compressive strength of cement should not be less than about 110Kg/cm² after three days & not less than 170Kg/cm² after seven days. The fineness of an ordinary cement as determined by turbidimetric method should be about __________ cm²/gm.

A. 800

B. 1600

C. 4000

D. 8500

Discuss this answer

Catalytic oxidation of naphthalene produces

A. Styrene

B. Phenol

C. Phthalic anhydride

D. None of these

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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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Dacron (or Terylene) fibres as compared to nylon fibres have

A. Better heat & acid resistant properties

B. Poorer resistance to alkalis

C. Poorer dyeability

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

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Liquor poisoning generally occurs due to the presence of __________ in it.

A. Ethyl alcohol

B. Impurities

C. Methyl alcohol

D. Carbonic acid

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Heating of __________ to 120°C, produces plaster of paris.

A. Blue vitriol

B. Gypsum

C. Calcium silicate

D. Calcium sulphate

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Commercial production of calcium carbide requires limestone and __________ as raw materials.

A. Coke

B. Sand

C. Soda ash

D. Fuel oil

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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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A mineral is termed as 'ore', if

A. A metal can be economically extracted from it

B. It contains ≥ 40% metal

C. The metal present in it is costly

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

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'Hollander beater' machine used in the paper manufacturing plant does not accomplish the task of

A. Final rolling out of paper

B. Cutting of fibres

C. Hydration of fibres

D. Fibrillation of fibre

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Hollander beater used during paper pulp manufacture does not facilitate the __________ of fibre.

A. Cutting

B. Fibrillation

C. Hydration

D. Strengthening

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Accepted Answer

A. Average degree of polymerisation of the polymer is 1966

Nylon-66 is so named because the

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Enamels

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

Glycerine is a by-product of the __________ industry.

Major component of flint glass is

Most widely and commonly used coagulant for the removal of suspended impurities in water is

Teflon is

99.5% purity oxygen is used in

Fermentation is adversely affected by the

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

Solvent extracted oil

__________ is the major constituent of the Portland cement.

Pure rectified spirit contains about __________ percent alcohol.

Rosin soap is added during paper manufacture to

Which oil is preferred for paint manufacture?

Nitric acid is not used in the manufacture of

Yellow phosphorus is transported under

Which of the following is used as a coagulant in water treatment?

Dehydrogenation of Isopropanol produces

Systemic insecticides

The compressive strength of cement should not be less than about 110Kg/cm² after three days & not less than 170Kg/cm² after seven days. The fineness of an ordinary cement as determined by turbidimetric method should be about __________ cm²/gm.

Catalytic oxidation of naphthalene produces

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

Dacron (or Terylene) fibres as compared to nylon fibres have

Liquor poisoning generally occurs due to the presence of __________ in it.

Heating of __________ to 120°C, produces plaster of paris.

Commercial production of calcium carbide requires limestone and __________ as raw materials.

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

A mineral is termed as 'ore', if

'Hollander beater' machine used in the paper manufacturing plant does not accomplish the task of

Hollander beater used during paper pulp manufacture does not facilitate the __________ of fibre.

Also checkout

Nylon-66 is so named because the

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Enamels

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

Glycerine is a by-product of the __________ industry.

Major component of flint glass is

Most widely and commonly used coagulant for the removal of suspended impurities in water is

Teflon is

99.5% purity oxygen is used in

Fermentation is adversely affected by the

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

Solvent extracted oil

__________ is the major constituent of the Portland cement.

Pure rectified spirit contains about __________ percent alcohol.

Rosin soap is added during paper manufacture to

Which oil is preferred for paint manufacture?

Nitric acid is not used in the manufacture of

Yellow phosphorus is transported under

Which of the following is used as a coagulant in water treatment?

Dehydrogenation of Isopropanol produces

Systemic insecticides

The compressive strength of cement should not be less than about 110Kg/cm2 after three days & not less than 170Kg/cm2 after seven days. The fineness of an ordinary cement as determined by turbidimetric method should be about __________ cm2/gm.

Catalytic oxidation of naphthalene produces

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

Dacron (or Terylene) fibres as compared to nylon fibres have

Liquor poisoning generally occurs due to the presence of __________ in it.

Heating of __________ to 120°C, produces plaster of paris.

Commercial production of calcium carbide requires limestone and __________ as raw materials.

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

A mineral is termed as 'ore', if

'Hollander beater' machine used in the paper manufacturing plant does not accomplish the task of

Hollander beater used during paper pulp manufacture does not facilitate the __________ of fibre.

Also checkout

The compressive strength of cement should not be less than about 110Kg/cm² after three days & not less than 170Kg/cm² after seven days. The fineness of an ordinary cement as determined by turbidimetric method should be about __________ cm²/gm.