Main constituents of Portland cement are calcium aluminate and

Question

Main constituents of Portland cement are calcium aluminate and

A. Gypsum

B. Silicates

C. Sodium silicate

D. Carbonates

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Use of chlorine in the treatment of sewage

A. Helps in grease separation

B. Increases the biological oxygen demand (BOD)

C. Causes bulking of activated sludge

D. Aids in flocculation

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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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Lithophane is

A. Explosive

B. White lead

C. Filter aid

D. ZnS (white pigment)

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Pick out the correct statement.

A. A fat is converted into oil by its hydrogenation

B. There is no difference between a fat and an oil so far as its physical properties are concerned

C. All vegetable oils except coconut oil, contains fatty acids having more than sixteen carbon atoms

D. Vegetable oils are classified as drying, non-drying and semi drying oils depending upon their fatty acids content

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Process conditions in fermentator used for production of penicillin is

A. 25°C, 2 atm

B. 50°C, l0 atm

C. 30°C, 200 mm Hg (absolute)

D. 90°C, 45 atm

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Common salt is generally not produced commonly by __________ method from brine.

A. Freeze drying

B. Electrolytic

C. Solar evaporation

D. Vacuum evaporation

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The drug used in contraceptives is

A. Sulfadiazine

B. Mestranol

C. Methyl salicylate

D. Penicillin

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__________ process is used for the commercial production of nitric acid by the catalytic oxidation of ammonia.

A. Solvay

B. Ostwald's

C. Haber's

D. None of these

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Cement mainly contains

A. CaO, SiO₂, Al₂O₃

B. MgO, SiO₂, K₂O

C. Al₂O₃, MgO, Fe₂O₃

D. CaO, MgO, K₂O

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Oxygen is produced by fractionation of air using __________ process.

A. Linde's

B. Claude's

C. Either (A) or (B)

D. None of these

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__________ glass is used for the manufacture of optical glass.

A. Pyrex

B. Soda

C. Flint

D. Crooke's

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Claude process of gas liquefaction employs

A. Merely compression of gas beyond its critical pressure

B. Joule-Thomson expansion cooling

C. Heat exchange with colder stream

D. Adiabatic expansion against a piston or in a turbine

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Fusion of limestone and __________ produces high alumina cement.

A. Sand

B. Bauxite

C. Quicklime

D. Calcite

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Low temperature carbonisation of coal takes place at __________ °C.

A. 300

B. 1100

C. 700

D. 900

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Electro deposition of metals i.e. electroplating is never done on

A. Metals

B. Alloys

C. Refractories

D. Non-metals

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Viscose rayon

A. Cannot be made from sulphite pulp

B. Utilises H₂SO₄, NaOH and CS₂ during its manufacture

C. Cannot yield textile grade fibre

D. None of these

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DDT stands for

A. Diethyl-diphenyl-trichloromethane

B. Dichloro-diphenyl-trichloromethane

C. diphenyl-dichloro-trichloromethane

D. Dichloro-diphenyl-trichloroethane

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Chemical name of aspirin (an analgesic drug) is

A. Acetylsalicylic acid

B. Nictonic acid

C. Calcium acetate

D. Methyl salicylate

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Argon is the third largest constituent of air (followed by N₂ & O₂). Its percentage by volume in air is

A. 0.14

B. 0.34

C. 0.94

D. 1.4

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Which of the following is not a raw material used for the manufacture of ordinary glass?

A. Iron oxide

B. Soda ash

C. Limestone

D. Silica

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Chloral is used in the manufacture of

A. DDT

B. BHC

C. Parathion

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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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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The temperature in the calcium carbide furnace is __________ °C.

A. 200-300

B. 700-850

C. 2000-2200

D. 4000-4500

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Which of the following is a detergent?

A. Fatty alcohol

B. Alkyl benzene sulphonate (ABS)

C. Fatty acids

D. Methylene chloride

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Anion exchanger is regenerated usually with

A. NaOH

B. H2SO4

C. Hydrazine

D. Alum solution

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Starting raw material for the manufacture of alum is

A. Alumina

B. Gypsum

C. Bauxite

D. Ammonium bicarbonate

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Which of the following processes does not produce Cl2 as a co-product during the manufacture of caustic soda?

A. Diaphragm electrolytic cell process

B. Mercury electrolytic cell process

C. Lime-soda process

D. None of these

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Which glass is usually used in optical work?

A. Lead glass

B. High silica (borosilicate) glass

C. Photo-sensitive glass

D. Fibre glass

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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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Accepted Answer

B. Silicates

Main constituents of Portland cement are calcium aluminate and

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Use of chlorine in the treatment of sewage

Nylon-6 is manufactured from

Lithophane is

Pick out the correct statement.

Process conditions in fermentator used for production of penicillin is

Common salt is generally not produced commonly by __________ method from brine.

The drug used in contraceptives is

__________ process is used for the commercial production of nitric acid by the catalytic oxidation of ammonia.

Cement mainly contains

Oxygen is produced by fractionation of air using __________ process.

__________ glass is used for the manufacture of optical glass.

Claude process of gas liquefaction employs

Fusion of limestone and __________ produces high alumina cement.

Low temperature carbonisation of coal takes place at __________ °C.

Electro deposition of metals i.e. electroplating is never done on

Viscose rayon

DDT stands for

Chemical name of aspirin (an analgesic drug) is

Argon is the third largest constituent of air (followed by N₂ & O₂). Its percentage by volume in air is

Which of the following is not a raw material used for the manufacture of ordinary glass?

Chloral is used in the manufacture of

Chloramines are used in water treatment for

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

The temperature in the calcium carbide furnace is __________ °C.

Which of the following is a detergent?

Anion exchanger is regenerated usually with

Starting raw material for the manufacture of alum is

Which of the following processes does not produce Cl2 as a co-product during the manufacture of caustic soda?

Which glass is usually used in optical work?

Fumigant insecticides

Also checkout

Main constituents of Portland cement are calcium aluminate and

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Use of chlorine in the treatment of sewage

Nylon-6 is manufactured from

Lithophane is

Pick out the correct statement.

Process conditions in fermentator used for production of penicillin is

Common salt is generally not produced commonly by __________ method from brine.

The drug used in contraceptives is

__________ process is used for the commercial production of nitric acid by the catalytic oxidation of ammonia.

Cement mainly contains

Oxygen is produced by fractionation of air using __________ process.

__________ glass is used for the manufacture of optical glass.

Claude process of gas liquefaction employs

Fusion of limestone and __________ produces high alumina cement.

Low temperature carbonisation of coal takes place at __________ °C.

Electro deposition of metals i.e. electroplating is never done on

Viscose rayon

DDT stands for

Chemical name of aspirin (an analgesic drug) is

Argon is the third largest constituent of air (followed by N2 & O2). Its percentage by volume in air is

Which of the following is not a raw material used for the manufacture of ordinary glass?

Chloral is used in the manufacture of

Chloramines are used in water treatment for

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

The temperature in the calcium carbide furnace is __________ °C.

Which of the following is a detergent?

Anion exchanger is regenerated usually with

Starting raw material for the manufacture of alum is

Which of the following processes does not produce Cl2 as a co-product during the manufacture of caustic soda?

Which glass is usually used in optical work?

Fumigant insecticides

Also checkout

Argon is the third largest constituent of air (followed by N₂ & O₂). Its percentage by volume in air is