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

Question

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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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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Helium is produced on commercial scale from

A. Air

B. Natural gas

C. Coke oven gas

D. None of these

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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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Ethylene oxide is produced by oxidation of ethylene in presence of AgO catalyst at

A. 1 atm & 100°C

B. 5 atm & 275°C

C. 100 atm & 500°C

D. 50 atm & 1000°C

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Which of the following additives/water proofing agents is added to lower the hydrophilic (moisture loving) characteristic of cement?

A. Xanthates

B. Stearic acid

C. Calcium & aluminium stearate

D. Formic acid

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Glycerine is a by-product of the __________ industry.

A. Soap

B. Detergent

C. Oil hydrogenation

D. Paint

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In Kraft process of paper manufacture, white cooking liquor consists of caustic soda

A. Sodium sulphide & sodium carbonate

B. Sodium sulphite & sodium carbonate

C. Sodium sulphite & sodium sulphide

D. None of these

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Chloramines are used in water treatment for

A. Disinfection and control of taste & odour

B. Corrosion control

C. Removing turbidity

D. Control of bacteria

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More than 100 percent of __________ is present in oleum.

A. SO₃

B. H₂SO₄

C. H₂SO₃

D. SO₂

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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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Maleic anhydride is produced by catalytic oxidation of

A. Toluene

B. Ethyl alcohol

C. Naphthalene

D. Benzene

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The difference between saponification value and acid value is

A. Called ester value

B. Always negative

C. Constant for all fatty oils

D. None of these

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Boiling of water containing temporary hardness produces

A. CO₂

B. CaSO₄

C. CaHCO₃

D. None of these

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Raw material used in alcohol distilleries in India is

A. Molasses

B. Benzol

C. Methylated spirit

D. None of these

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Pick out the wrong statement.

A. Pasteurisation of milk involves moderate heating followed by cooling

B. Bakeries and breweries make use of yeasts

C. Enzyme is a complex nitrogenous compound

D. Oils and fats are alkaloids

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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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'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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__________ of quicklime produces slaked lime.

A. Hydration

B. Dehydration

C. Hydrogenation

D. None of these

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Diaphragm electrolytic cell as compared to mercury electrolytic cell

A. Produces 70% NaOH solution

B. Requires less specific power consumption for the production of chlorine

C. Requires lesser investment for similar capacity

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

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Dacron is a

A. Condensation product of Hexamethylene diamine and adipic acid

B. Thermosetting material

C. Condensation product of dimethyl terephthalate and ethylene glycol

D. None of these

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Kaolin is a/an

A. Refractory material

B. Synthetic resin

C. Artificial abrasive

D. Blue pigment

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Carbon disulphide is mainly used in the production of

A. Viscose rayon

B. Corundum

C. Plasticiser for unsaturated polyester

D. Paints

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The catalyst used in the production of elemental sulphur from H₂S (by oxidation-reduction) is

A. Alumina

B. Silica gel

C. Platinum

D. Nickel

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Glycerine is not used in the

A. Manufacture of explosive

B. Conditioning and humidification of tobacco

C. Manufacture of pharmaceuticals

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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Poly Vinyl Chloride (P.V.C.) is a __________ material.

A. Thermosetting

B. Thermoplastic

C. Fibrous

D. Chemically active

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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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Fourdrinier machine is used in the manufacture of

A. Sugar

B. Paper

C. Alcohol from molasses

D. Phenol formaldehyde

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Zeolite is used in the

A. Water treatment

B. Glass manufacture

C. Hydrogenation of fatty oil as a catalyst

D. Development of exposed photographic plate

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Yeast is used in the manufacture of

A. Penicillin

B. Antibiotics

C. Wine

D. Pasteurised milk

Discuss this answer

Accepted Answer

A. Low co-efficient of expansion

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

Correct Answer :

Show all Chemical Process MCQ

Related Questions

High purity nitrogen is used in

Helium is produced on commercial scale from

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

Ethylene oxide is produced by oxidation of ethylene in presence of AgO catalyst at

Which of the following additives/water proofing agents is added to lower the hydrophilic (moisture loving) characteristic of cement?

Glycerine is a by-product of the __________ industry.

In Kraft process of paper manufacture, white cooking liquor consists of caustic soda

Chloramines are used in water treatment for

More than 100 percent of __________ is present in oleum.

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

Maleic anhydride is produced by catalytic oxidation of

The difference between saponification value and acid value is

Boiling of water containing temporary hardness produces

Raw material used in alcohol distilleries in India is

Pick out the wrong statement.

Permanent hardness of water can be removed by

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

__________ of quicklime produces slaked lime.

Diaphragm electrolytic cell as compared to mercury electrolytic cell

Dacron is a

Kaolin is a/an

Carbon disulphide is mainly used in the production of

The catalyst used in the production of elemental sulphur from H₂S (by oxidation-reduction) is

Glycerine is not used in the

Fumigant insecticides

Poly Vinyl Chloride (P.V.C.) is a __________ material.

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

Fourdrinier machine is used in the manufacture of

Zeolite is used in the

Yeast is used in the manufacture of

Also checkout

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

Correct Answer :

Show all Chemical Process MCQ

Related Questions

High purity nitrogen is used in

Helium is produced on commercial scale from

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

Ethylene oxide is produced by oxidation of ethylene in presence of AgO catalyst at

Which of the following additives/water proofing agents is added to lower the hydrophilic (moisture loving) characteristic of cement?

Glycerine is a by-product of the __________ industry.

In Kraft process of paper manufacture, white cooking liquor consists of caustic soda

Chloramines are used in water treatment for

More than 100 percent of __________ is present in oleum.

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

Maleic anhydride is produced by catalytic oxidation of

The difference between saponification value and acid value is

Boiling of water containing temporary hardness produces

Raw material used in alcohol distilleries in India is

Pick out the wrong statement.

Permanent hardness of water can be removed by

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

__________ of quicklime produces slaked lime.

Diaphragm electrolytic cell as compared to mercury electrolytic cell

Dacron is a

Kaolin is a/an

Carbon disulphide is mainly used in the production of

The catalyst used in the production of elemental sulphur from H2S (by oxidation-reduction) is

Glycerine is not used in the

Fumigant insecticides

Poly Vinyl Chloride (P.V.C.) is a __________ material.

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

Fourdrinier machine is used in the manufacture of

Zeolite is used in the

Yeast is used in the manufacture of

Also checkout

The catalyst used in the production of elemental sulphur from H₂S (by oxidation-reduction) is