Which form of sulphur is the most stable at room temperature?

Question

Which form of sulphur is the most stable at room temperature?

A. Plastic

B. Monoclinic

C. Rhombic

D. Flowers of sulphur

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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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Plasticisers are added to synthetic plastics to

A. Impart flexibility

B. Improve workability during fabrication

C. Develop new improved properties not present in the original resins

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

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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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Which allotrope of sulphur is insoluble in carbon disulphide?

A. Rhombic sulphur

B. Monoclinic sulphur

C. Plastic sulphur

D. Milk of sulphur

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Which of the following is a disaccharide?

A. Sucrose

B. Glucose

C. Starch

D. Maltose

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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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Thermosetting plastic materials

A. Can be repeatedly melted

B. Is useful for melt casting

C. Cannot be melted after forming

D. Is useful for spinning

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Oxidation of ortho-xylene in presence of __________ catalyst is done to produce phthalic anhydride on commercial scale.

A. Nickel

B. Vanadium

C. Alumina

D. Iron

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__________ process is used for producing soda ash.

A. Chamber

B. Chance

C. Tromp

D. Solvay

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Producer gas consists mainly of

A. CO, CO₂ N₂, H₂

B. CO, H₂

C. H₂, CH₄

D. C₂H₂, CO₂, H₂

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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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The purpose of adding Na₂CO₃ to water of low alkalinity is to

A. Permit the use of alum as a coagulant

B. Increase the softening capacity of zeolite

C. Facilitate easy regeneration of zeolite

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

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Coke oven gas consists mainly of

A. H₂, & CH₄

B. CO, & CO₂

C. H₂, & CO

D. CH₄, & CO

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Chemical name of soda ash is

A. Sodium bicarbonate

B. Sodium thiosulphate

C. Potassium carbonate

D. None of these

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Which of the following is not an antibiotic?

A. Penicillin

B. Streptomycin

C. Tetracycline

D. Quinine

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A mineral is termed as 'ore', if

A. A metal can be economically extracted from it

B. It contains ≥ 40% metal

C. The metal present in it is costly

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

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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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Teflon is

A. Phenol formaldehyde

B. An inorganic polymer

C. Poly tetra-fluoro-ethylene (P.T.F.E.)

D. A monomer

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The basic difference between vegetable oils and fats is in their

A. Density

B. Chemical properties

C. Physical state

D. Composition

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__________ is an ore of lead.

A. Quartz

B. Galena

C. Siderite

D. Chalcopyrite

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Catalytic oxidation-dehydrogenation of methyl alcohol produces

A. Formaldehyde

B. Phenol

C. Acetone

D. Maleic anhydride

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The compressive strength of cement should not be less than about 110Kg/cm² after three days & not less than 170Kg/cm² after seven days. The fineness of an ordinary cement as determined by turbidimetric method should be about __________ cm²/gm.

A. 800

B. 1600

C. 4000

D. 8500

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Massecuite is

A. Used for paper making

B. Used as a cattle feed

C. Highly acidic in nature

D. None of these

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Sugar content in sugarcane on cane basis is about __________ percent by weight.

A. 1 to 5

B. 5 to 10

C. 15 to 20

D. 20 to 30

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Drinking (potable) water treatment does not involve

A. Coagulation

B. Sedimentation

C. Softening

D. Disinfection

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Bio-degradable detergents

A. Can be readily oxidised

B. Pose problem in sewerage plant

C. Have an isoparaffinic structure

D. Should not be used as it spoils the cloth

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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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Which of the following is a detergent?

A. Benzene hexachloride

B. Alkyl benzene sulphonate

C. Polytetrafluoroethylene

D. Cellulose nitrate

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Dichloro diphenyl __________ is the full form of DDT (an insecticide).

A. Tetrachloroethane

B. Trichloroethane

C. Tetrachloromethane

D. Trichloromethane

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Deaeration of water in its treatment is necessary, as it

A. Minimises its turbidity

B. Helps in controlling its taste and odour

C. Minimises its corrosiveness

D. None of these

Discuss this answer

Accepted Answer

C. Rhombic

Which form of sulphur is the most stable at room temperature?

Correct Answer :

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Related Questions

Reverse osmosis is normally used for the

Plasticisers are added to synthetic plastics to

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

Which allotrope of sulphur is insoluble in carbon disulphide?

Which of the following is a disaccharide?

DDT stands for

Thermosetting plastic materials

Oxidation of ortho-xylene in presence of __________ catalyst is done to produce phthalic anhydride on commercial scale.

__________ process is used for producing soda ash.

Producer gas consists mainly of

Claude process of gas liquefaction employs

The purpose of adding Na₂CO₃ to water of low alkalinity is to

Coke oven gas consists mainly of

Chemical name of soda ash is

Which of the following is not an antibiotic?

A mineral is termed as 'ore', if

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

Teflon is

The basic difference between vegetable oils and fats is in their

__________ is an ore of lead.

Catalytic oxidation-dehydrogenation of methyl alcohol produces

The compressive strength of cement should not be less than about 110Kg/cm² after three days & not less than 170Kg/cm² after seven days. The fineness of an ordinary cement as determined by turbidimetric method should be about __________ cm²/gm.

Massecuite is

Sugar content in sugarcane on cane basis is about __________ percent by weight.

Drinking (potable) water treatment does not involve

Bio-degradable detergents

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

Which of the following is a detergent?

Dichloro diphenyl __________ is the full form of DDT (an insecticide).

Deaeration of water in its treatment is necessary, as it

Also checkout

Which form of sulphur is the most stable at room temperature?

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Reverse osmosis is normally used for the

Plasticisers are added to synthetic plastics to

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

Which allotrope of sulphur is insoluble in carbon disulphide?

Which of the following is a disaccharide?

DDT stands for

Thermosetting plastic materials

Oxidation of ortho-xylene in presence of __________ catalyst is done to produce phthalic anhydride on commercial scale.

__________ process is used for producing soda ash.

Producer gas consists mainly of

Claude process of gas liquefaction employs

The purpose of adding Na2CO3 to water of low alkalinity is to

Coke oven gas consists mainly of

Chemical name of soda ash is

Which of the following is not an antibiotic?

A mineral is termed as 'ore', if

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

Teflon is

The basic difference between vegetable oils and fats is in their

__________ is an ore of lead.

Catalytic oxidation-dehydrogenation of methyl alcohol produces

The compressive strength of cement should not be less than about 110Kg/cm2 after three days & not less than 170Kg/cm2 after seven days. The fineness of an ordinary cement as determined by turbidimetric method should be about __________ cm2/gm.

Massecuite is

Sugar content in sugarcane on cane basis is about __________ percent by weight.

Drinking (potable) water treatment does not involve

Bio-degradable detergents

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

Which of the following is a detergent?

Dichloro diphenyl __________ is the full form of DDT (an insecticide).

Deaeration of water in its treatment is necessary, as it

Also checkout

The purpose of adding Na₂CO₃ to water of low alkalinity is to

The compressive strength of cement should not be less than about 110Kg/cm² after three days & not less than 170Kg/cm² after seven days. The fineness of an ordinary cement as determined by turbidimetric method should be about __________ cm²/gm.