Mannheim furnace is used in the manufacture of

Question

Mannheim furnace is used in the manufacture of

A. Hydrochloric acid

B. H₂SO₄ by Chamber process

C. Calcium carbide

D. Corundum

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Permanent hardness of water is due to the presence of calcium & magnesium

A. Bi-carbonates

B. Sulphates & chlorides

C. Carbonate

D. None of these

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Plasticisers are added to paints to

A. Make it corrosion resistant

B. Make glossy surface

C. Give elasticity & prevent cracking of the film

D. Increase atmospheric oxidation

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Concentration of NaOH solution produced by diaphragm electrolytic cell is about __________ percent.

A. 10

B. 25

C. 50

D. 98

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Electric bulbs are made of __________ glass.

A. Jena

B. Flint

C. Crookes

D. Pyrex

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The main product of high temperature carbonisation of coal is

A. Coke

B. Ammonia

C. Tar

D. Phenol

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Reverse osmosis is normally used for the

A. Separation of isotopes of uranium from gaseous uranium hexafluoride

B. Separation of helium from natural gas

C. Desalination of brackish water to produce potable (drinking) water

D. Purification of oxygen

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Good quality of edible salt is obtained from brine by the process of

A. Solar evaporation

B. Vacuum evaporation

C. Freeze drying

D. Electrolysis

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Pitch (a product of coal tar distillation) is always mixed with creosote oil, when it is to be burnt in a burner, because

A. Its calorific value is very less

B. Tar neutralises the residual acids present in pitch

C. It reduces viscosity and imparts fluidity for its transportation through pipelines at economic pressure drop

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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Use of hydrated lime in water treatment

A. Before filtration, reduces the bacterial load on filters

B. After filtration, combats the corrosiveness of water due to the presence of O₂ & CO₂

C. Is to adjust the pH value

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

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The most economical pulp for the production of newsprint would be the __________ pulp.

A. Ground-wood

B. Sulphate

C. Sulphite

D. Semi-chemical

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Which of the following is an explosive?

A. Nitro-glycerine

B. Trinitrotoluene (TNT)

C. Cellulose nitrate

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

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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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Catalytic oxidation of naphthalene produces

A. Styrene

B. Phenol

C. Phthalic anhydride

D. None of these

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Vulcanisation of rubber

A. Decreases its tensile strength

B. Increases its ozone & oxygen reactivity

C. Increases its oil & solvent resistance

D. Converts its plasticity into elasticity

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Removal of dirt/soil by soaps or detergent does not involve the __________ of soil.

A. Emulsification

B. Dispersion

C. Precipitation

D. Wetting

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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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Hydrogen gas is not produced commercially (for nitrogenous fertiliser manufacture) by

A. Iron-steam reaction

B. Electrolysis of water

C. Steam reforming of naphtha

D. Its cryogenic separation from coke oven gas

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Bleaching of paper pulp is done with

A. Activated clay

B. Bromine

C. Chlorine or chlorine dioxide

D. Magnesium sulphite

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Frasch process is for

A. Making oxygen

B. Producing helium

C. Mining sulphur

D. Making nitrogen

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Fluorescent dyes are added in detergents to

A. Act as fabric brightener (by converting ultraviolet light to visible light) thereby improving the whiteness appearance of white fabrics

B. Attain distinctiveness from other brands

C. Act as tarnish inhibitor for metals like German silver

D. None of these

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

A. Chlorine

B. Ferric sulphate

C. Calcium sulphate

D. Activated carbon

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Vegetable oils contain large quantity of glycerides of unsaturated acids. When the vegetable oils contain high amount of saturated fatty acids, it is termed as __________ oil.

A. Drying

B. Semi-drying

C. Non-drying

D. None of these

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90% of the caprolactam is converted to nylon-6 on its condensation polymerisation in the reactor maintained at __________ °C.

A. < 0

B. 10-30

C. 250-280

D. 500-600

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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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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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CaSO4 . ½H₂O is known as

A. Blue vitriol

B. Plaster of Paris

C. Gypsum

D. Zeolite

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Function of sodium thiosulphate (hypo) in development of photographic film/plate is to

A. Brighten the faint images

B. Remove metallic silver

C. Convert silver chloride to silver

D. Remove unexposed silver halide

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Starting material for the production of styrene butadiene rubber (SBR) is

A. Ethyl alcohol

B. Ethylene

C. Both (A) & (B)

D. Neither (A) nor (B)

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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

Discuss this answer

Accepted Answer

A. Hydrochloric acid

Mannheim furnace is used in the manufacture of

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Permanent hardness of water is due to the presence of calcium & magnesium

Plasticisers are added to paints to

Concentration of NaOH solution produced by diaphragm electrolytic cell is about __________ percent.

Electric bulbs are made of __________ glass.

The main product of high temperature carbonisation of coal is

Reverse osmosis is normally used for the

Good quality of edible salt is obtained from brine by the process of

Pitch (a product of coal tar distillation) is always mixed with creosote oil, when it is to be burnt in a burner, because

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

Use of hydrated lime in water treatment

The most economical pulp for the production of newsprint would be the __________ pulp.

Which of the following is an explosive?

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

Catalytic oxidation of naphthalene produces

Vulcanisation of rubber

Removal of dirt/soil by soaps or detergent does not involve the __________ of soil.

Sodium bisulphite is used for __________ water.

Hydrogen gas is not produced commercially (for nitrogenous fertiliser manufacture) by

Bleaching of paper pulp is done with

Frasch process is for

Fluorescent dyes are added in detergents to

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

Vegetable oils contain large quantity of glycerides of unsaturated acids. When the vegetable oils contain high amount of saturated fatty acids, it is termed as __________ oil.

90% of the caprolactam is converted to nylon-6 on its condensation polymerisation in the reactor maintained at __________ °C.

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

Starting raw material for the manufacture of Maleic anhydride is

CaSO4 . ½H₂O is known as

Function of sodium thiosulphate (hypo) in development of photographic film/plate is to

Starting material for the production of styrene butadiene rubber (SBR) is

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

Also checkout

Mannheim furnace is used in the manufacture of

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Permanent hardness of water is due to the presence of calcium & magnesium

Plasticisers are added to paints to

Concentration of NaOH solution produced by diaphragm electrolytic cell is about __________ percent.

Electric bulbs are made of __________ glass.

The main product of high temperature carbonisation of coal is

Reverse osmosis is normally used for the

Good quality of edible salt is obtained from brine by the process of

Pitch (a product of coal tar distillation) is always mixed with creosote oil, when it is to be burnt in a burner, because

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

Use of hydrated lime in water treatment

The most economical pulp for the production of newsprint would be the __________ pulp.

Which of the following is an explosive?

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

Catalytic oxidation of naphthalene produces

Vulcanisation of rubber

Removal of dirt/soil by soaps or detergent does not involve the __________ of soil.

Sodium bisulphite is used for __________ water.

Hydrogen gas is not produced commercially (for nitrogenous fertiliser manufacture) by

Bleaching of paper pulp is done with

Frasch process is for

Fluorescent dyes are added in detergents to

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

Vegetable oils contain large quantity of glycerides of unsaturated acids. When the vegetable oils contain high amount of saturated fatty acids, it is termed as __________ oil.

90% of the caprolactam is converted to nylon-6 on its condensation polymerisation in the reactor maintained at __________ °C.

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

Starting raw material for the manufacture of Maleic anhydride is

CaSO4 . ½H2O is known as

Function of sodium thiosulphate (hypo) in development of photographic film/plate is to

Starting material for the production of styrene butadiene rubber (SBR) is

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

Also checkout

CaSO4 . ½H₂O is known as