Which one of the following is not an elastomer?

Question

Which one of the following is not an elastomer?

A. Polyisoprene

B. Neoprene

C. Nitrile-butadiene

D. None of these

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Raw materials required for the manufacture of __________ is acetylene and hydrochloric acid.

A. Phthalic anhydride

B. Vinyl chloride

C. Maleic anhydride

D. Dacron

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Temporary hardness of water can be removed by

A. Addition of alum (a coagulant)

B. Boiling

C. Filtration (through gravity sand filter)

D. Addition of lime

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Prussian blue is chemically represented by

A. FeO.TiO₂

B. Ca SO₄ . 2H₂O

C. Fe₄ [Fe (CN₆)₃]

D. AlF₃ . 3N_aF

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Carborundum consists mainly of

A. Bauxite

B. Silicon carbide

C. Boron carbide

D. Calcium carbide

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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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Glycerine is a by-product of the __________ industry.

A. Soap

B. Detergent

C. Oil hydrogenation

D. Paint

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Which of the following is an endothermic reaction?

A. Absorption of SO₃ in 98% H₂SO₄

B. C + H₂O = CO + H₂

C. Thermal dissociation of iron pyrites

D. Both (B) and (C)

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Coke used for the production of calcium carbide should have

A. Low ash content

B. Low ignition temperature

C. High electrical resistivity

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

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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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Ca(OH)₂ is called

A. Quicklime

B. Slaked lime

C. Limestone

D. Gypsum

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How much temperature is maintained during quicklime manufacture in the calcination zone of the vertical shaft kiln?

A. 500°C

B. 750°C

C. 1000°C

D. 1500°C

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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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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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Pure rectified spirit contains about __________ percent alcohol.

A. 45

B. 70

C. 95

D. 99.5

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Titanium dioxide is a/an __________ colour pigment.

A. White

B. Black

C. Yellow

D. Blue

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Extraction of __________ employs an electrolytic process.

A. Aluminium

B. Silver

C. Copper

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

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

A. 2000

B. 700

C. 1100

D. < 500

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The noble gas which occurs most abundantly in the atmosphere is

A. Helium

B. Neon

C. Krypton

D. Argon

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Pasteurisation of milk means

A. Removal of fatty and albuminous substance from it

B. Killing of organisms present in it by heating it at controlled temperature without changing its natural characteristics

C. Inhibiting the growth of micro-organisms without killing them

D. None of these

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With increase in temperature, the equilibrium constant at constant pressure (Kp) for oxidation of sulphur dioxide

A. Increases

B. Increases linearly

C. Decreases

D. Decreases linearly

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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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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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Trinitrotoluene (TNT), an explosive, is made by the nitration of

A. Nitrobenzene

B. Toluene

C. Nitrotoluene

D. Benzene

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What products do we get on electrolysis of saturated brine using steel cathode and graphite anode in an electrolytic cell?

A. Cl₂ & Na

B. Cl₂ & H₂

C. O₂ & H₂

D. Cl₂, H₂ & NaOH solution

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Black liquor is converted into white liquor by

A. Evaporation and burning the concentrate followed by causticisation of products

B. Multi-effect evaporation only

C. Selective liquid extraction

D. Extractive distillation

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Pick out the wrong statement pertaining to the soap manufacture.

A. Transparent soaps are made by cold process

B. Organic pigments are used as colouring materials in the soap manufacture

C. Both laundry as well as toilet soaps are manufactured by hot process

D. Colourless rosin is used in the manufacture of laundry soaps

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Shaving soaps are

A. Soft potassium soaps (potassium salt of fatty acid) with free Stearic acid to give lather a lasting property

B. Metallic soaps compounded with frothing agents

C. High free alkali soaps having excess of cane sugar and alcohol

D. None of these

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Builders are added in soap to act as

A. Cleaning power booster

B. Anti-redeposition agent

C. Corrosion inhibitor

D. Fabric brightener

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Roasting of metallurgical ores is done mainly to

A. Dehydrate it

B. Sinter the ore

C. Remove CO₂ & H₂O

D. Remove arsenic & sulphur

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Bleaching action of bleaching powder is due to its __________ properties.

A. Reducing

B. Oxidising

C. Disinfecting

D. None of these

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Accepted Answer

D. None of these

Which one of the following is not an elastomer?

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Raw materials required for the manufacture of __________ is acetylene and hydrochloric acid.

Temporary hardness of water can be removed by

Prussian blue is chemically represented by

Carborundum consists mainly of

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

Glycerine is a by-product of the __________ industry.

Which of the following is an endothermic reaction?

Coke used for the production of calcium carbide should have

Enamels

Ca(OH)₂ is called

How much temperature is maintained during quicklime manufacture in the calcination zone of the vertical shaft kiln?

Maleic anhydride is produced by catalytic oxidation of

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

Pure rectified spirit contains about __________ percent alcohol.

Titanium dioxide is a/an __________ colour pigment.

Extraction of __________ employs an electrolytic process.

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

The noble gas which occurs most abundantly in the atmosphere is

Pasteurisation of milk means

With increase in temperature, the equilibrium constant at constant pressure (Kp) for oxidation of sulphur dioxide

Soap cannot be used with hard water, because

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

Trinitrotoluene (TNT), an explosive, is made by the nitration of

What products do we get on electrolysis of saturated brine using steel cathode and graphite anode in an electrolytic cell?

Black liquor is converted into white liquor by

Pick out the wrong statement pertaining to the soap manufacture.

Shaving soaps are

Builders are added in soap to act as

Roasting of metallurgical ores is done mainly to

Bleaching action of bleaching powder is due to its __________ properties.

Also checkout

Which one of the following is not an elastomer?

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Raw materials required for the manufacture of __________ is acetylene and hydrochloric acid.

Temporary hardness of water can be removed by

Prussian blue is chemically represented by

Carborundum consists mainly of

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

Glycerine is a by-product of the __________ industry.

Which of the following is an endothermic reaction?

Coke used for the production of calcium carbide should have

Enamels

Ca(OH)2 is called

How much temperature is maintained during quicklime manufacture in the calcination zone of the vertical shaft kiln?

Maleic anhydride is produced by catalytic oxidation of

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

Pure rectified spirit contains about __________ percent alcohol.

Titanium dioxide is a/an __________ colour pigment.

Extraction of __________ employs an electrolytic process.

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

The noble gas which occurs most abundantly in the atmosphere is

Pasteurisation of milk means

With increase in temperature, the equilibrium constant at constant pressure (Kp) for oxidation of sulphur dioxide

Soap cannot be used with hard water, because

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

Trinitrotoluene (TNT), an explosive, is made by the nitration of

What products do we get on electrolysis of saturated brine using steel cathode and graphite anode in an electrolytic cell?

Black liquor is converted into white liquor by

Pick out the wrong statement pertaining to the soap manufacture.

Shaving soaps are

Builders are added in soap to act as

Roasting of metallurgical ores is done mainly to

Bleaching action of bleaching powder is due to its __________ properties.

Also checkout

Ca(OH)₂ is called