Mercury cells for caustic soda manufacture, compared to diaphragm cells

Question

Mercury cells for caustic soda manufacture, compared to diaphragm cells

A. Require lower initial investment

B. Require more power

C. Produce lower concentration NaOH

D. None of these

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Which of the following paper does not require a filler during manufacture?

A. Bond paper

B. Writing paper

C. Blotting paper

D. Coloured paper

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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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Digestion of wood-base materials (for manufacture of pulp) is done to

A. Remove lignin

B. Produce long fibres

C. Prevent deterioration on storage

D. None of these

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__________ is an ore concentrating metallurgical process involving a chemical change.

A. Electromagnetic separation

B. Froth floatation

C. Roasting

D. None of these

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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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Hydrogenation of edible vegetable oils

A. Is an exothermic reaction

B. Increases their melting point

C. Is done in presence of nickel catalyst

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

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Glycerine can be obtained from

A. Fat

B. Naphthalene

C. Cumene

D. Sucrose

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DDT should not be allowed to come in contact with iron (during its manufacture) to

A. Avoid its decomposition

B. Prevent sulphonation of the monochlorobenzene by the acid catalyst

C. Achieve non-hygroscopic property

D. None of these

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__________ is obtained as a by-product in the manufacture of sodium hydroxide using brine.

A. Chlorine

B. Ammonium chloride

C. Sodium carbonate

D. Sodium bi-carbonate

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Molecular weight of plastics ranges from

A. 5000 to 10000

B. 20000 to 250000

C. 500 to 5000

D. 106 to 109

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Chemical formula of 'salt cake' is

A. Na₂SO₄

B. CaSO₄

C. MgSO₄

D. BaSO₄

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L.D. converter is used in the production of

A. Pig iron

B. Steel

C. Copper

D. Zinc

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Nylon-6 is manufactured from

A. Caprolactam

B. Hexamethylene diamine and adipic acid

C. Hexamethylene diamine and Maleic anhydride

D. Hexamethylene diamine and Sebacic acid

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Metallic soap is __________ salt of fatty acids.

A. Sodium

B. Potassium

C. Both sodium & potassium

D. Aluminium or calcium

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Raw materials for 'Solvay Process' for manufacture of the soda ash are

A. Salt, limestone and coke or gas

B. Ammonia, salt and limestone

C. Ammonia limestone and coke

D. None of these

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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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Massecuite is a terminology used in the __________ industry.

A. Paint

B. Oil hydrogenation

C. Soap

D. Sugar

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Which catalyst is used in the manufacture of ethylene oxide by oxidation of ethylene?

A. AgO

B. Al₂O₃

C. ZnCl₂

D. Fe₂O₃

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Oil produced by solvent extraction

A. Has low free fatty acid content

B. Is odourless

C. Both (A) & (B)

D. Neither (A) nor (B)

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Exothermic neutralisation reaction between caustic soda and dodecylbenzene sulfonic acid produces sodium dodecylbenzene sulphate, which is a/an

A. Explosive

B. Soap

C. Detergent

D. Analgesic drug

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Titanium dioxide is a/an __________ colour pigment.

A. White

B. Black

C. Yellow

D. Blue

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Flexible foam (for mattresses) is usually made of

A. PVC

B. Silicone

C. Polyurethanes

D. Polyamides

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Pick out the wrong statement.

A. Catalytic hydrogenation of carbon monoxide produces methyl alcohol

B. In nylon-6, the number 6 represents the total number of carbon atoms in the ring

C. Raw materials for DDT manufacture are benzene and chlorine

D. Ethanolamines are produced by using ammonia and ethylene oxide as raw material

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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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__________ acid is an unsaturated fatty acid.

A. Palmitic

B. Oleic

C. Stearic

D. Oxalic

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Alum is commercially produced from

A. Gypsum

B. Feldspar

C. Galena

D. Bauxite

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Coagulant is used __________ filtration.

A. Before

B. After

C. During

D. To avoid

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Styrene is produced from ethyl benzene by the process of

A. Dehydrogenation

B. Oxidation

C. Alkylation

D. Dehydration

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Soap cannot be used with hard water, because

A. Hard water contains sulphate

B. They form insoluble calcium soaps which precipitate

C. They attract back the removed dirt

D. None of these

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Reaction of an alcohol with organic acid is called the __________ reaction.

A. Saponification

B. Esterification

C. Neutralisation

D. Acidification

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Accepted Answer

D. None of these

Mercury cells for caustic soda manufacture, compared to diaphragm cells

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Which of the following paper does not require a filler during manufacture?

Pick out the wrong statement.

Digestion of wood-base materials (for manufacture of pulp) is done to

__________ is an ore concentrating metallurgical process involving a chemical change.

Fermentation is adversely affected by the

Hydrogenation of edible vegetable oils

Glycerine can be obtained from

DDT should not be allowed to come in contact with iron (during its manufacture) to

__________ is obtained as a by-product in the manufacture of sodium hydroxide using brine.

Molecular weight of plastics ranges from

Chemical formula of 'salt cake' is

L.D. converter is used in the production of

Nylon-6 is manufactured from

Metallic soap is __________ salt of fatty acids.

Raw materials for 'Solvay Process' for manufacture of the soda ash are

99.5% purity oxygen is used in

Massecuite is a terminology used in the __________ industry.

Which catalyst is used in the manufacture of ethylene oxide by oxidation of ethylene?

Oil produced by solvent extraction

Exothermic neutralisation reaction between caustic soda and dodecylbenzene sulfonic acid produces sodium dodecylbenzene sulphate, which is a/an

Titanium dioxide is a/an __________ colour pigment.

Flexible foam (for mattresses) is usually made of

Pick out the wrong statement.

Which oil is preferred for paint manufacture?

__________ acid is an unsaturated fatty acid.

Alum is commercially produced from

Coagulant is used __________ filtration.

Styrene is produced from ethyl benzene by the process of

Soap cannot be used with hard water, because

Reaction of an alcohol with organic acid is called the __________ reaction.

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