A mineral is termed as 'ore', if

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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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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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Dechlorination of treated water is necessary to

A. Remove residual turbidity

B. Reduce the bacterial load on filter

C. Control taste and odour

D. Remove chlorinous taste

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Bakelite is

A. Same as Polytetrafluoroethylene (PTFE)

B. An inorganic polymer

C. Same as thermosetting phenol-formaldehyde

D. Not a polymer

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Thermoplastic materials

A. Do not soften on application of heat

B. Are heavily branched molecules

C. Are solvent insoluble

D. None of these

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Highly porous refractory bricks are

A. Less susceptible to chemical attack by molten fluxes and gases etc

B. Very strong

C. Having very high thermal conductivity

D. None of these

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Sulphur addition in soap is done to

A. Improve the soap texture

B. Cure pimples & dandruff

C. Fasten lather formation

D. Increase its cleansing action

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The catalyst used in the production of elemental sulphur from H₂S (by oxidation-reduction) is

A. Alumina

B. Silica gel

C. Platinum

D. Nickel

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__________ is used as a flux in the extraction of iron from iron ore (haematite) in blast furnace.

A. Bauxite

B. Limestone

C. Quartz

D. Manganese

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The main use of activated carbon in water treatment is to control

A. Bacterial growth

B. Taste and odour

C. Turbidity

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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Commercial scale production of hydrogen from iron-steam reaction represented by, 3Fe + 3H₂O = Fe₃O₄ + 4H₂, is not practised, as it is

A. A slow reaction

B. A discontinuous reaction (requiring regeneration of iron by water gas intermittently)

C. Still in development stage (by employing fluidised bed technique)

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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Cement setting under water employs a/an __________ process.

A. Hydration

B. Decomposition

C. Oxidation

D. Reduction

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Phthalic anhydride is made by the

A. Oxidation of naphthalene

B. Oxidation of benzene

C. Dehydrogenation of ethyl benzene

D. None of these

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Raw materials used for producing __________ cement does not contain iron oxide.

A. Waterproof

B. Slag

C. White

D. Pozzolan

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Nylon-66 is manufactured from

A. Hexamethylene diamine and adipic acid

B. Hexamethylene diamine and Maleic anhydride

C. Caprolactam

D. Dimethyl terephthalate and ethylene glycol

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Yellow glycerine is made into white, using

A. Activated carbon

B. Diatomaceous earth

C. Bauxite

D. Bentonite

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Which of the following is a disaccharide?

A. Sucrose

B. Glucose

C. Starch

D. Maltose

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Dacron (or Terylene) fibres as compared to nylon fibres have

A. Better heat & acid resistant properties

B. Poorer resistance to alkalis

C. Poorer dyeability

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

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Which of the following impurities in feed water for high pressure boiler is the most detrimental?

A. Silica

B. Dissolved oxygen

C. Suspended salt

D. Dissolved salt

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Hydrazine is used in water treatment for the removal of

A. Colloidal impurities

B. Dissolved oxygen

C. Turbidity

D. Chlorinous taste

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Which is the main reducing agent during production of iron from iron ore in a blast furnace?

A. C

B. CO

C. CO₂

D. H₂

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Nitrile rubber is produced by the polymerisation of

A. Acrylonitrile and butadiene

B. Acrylonitrile and styrene

C. Isobutylene and isoprene

D. None of these

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Starting material for the production of butadiene in India is

A. Naphthalene

B. Benzol

C. Ethyl alcohol

D. Phthalic anhydride

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Gelatine which is a nitrogenous organic protein is obtained by the hydrolysis of

A. Collagen

B. Tannin

C. Molasses

D. Carbohydrate

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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

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Aryl benzene sulphonate (ABS) is a

A. Detergent

B. Plasticiser for unsaturated polyester

C. Starting material for the synthesis of glycerine

D. Coating ingredient for photographic film

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Kaolin is a/an

A. Refractory material

B. Synthetic resin

C. Artificial abrasive

D. Blue pigment

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Varnish does not contain

A. Thinner

B. Pigment

C. Both (A) & (B)

D. Neither (A) nor (B)

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Pick out the wrong statement.

A. Conversion of SO₂ to SO₃ in Monsanto-4 pass converter is about 98%

B. The chemical formula of oleum is H2S2O7, which is formed by saturating sulphuric acid with sulphur trioxide

C. Vitriol oil is nothing but technical sulphuric acid

D. Decomposition of sulphuric acid on heating does not start before its boiling

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Accepted Answer

A. A metal can be economically extracted from it

A mineral is termed as 'ore', if

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Shaving soaps are

Dechlorination of treated water is necessary to

Bakelite is

Thermoplastic materials

Highly porous refractory bricks are

Sulphur addition in soap is done to

The catalyst used in the production of elemental sulphur from H₂S (by oxidation-reduction) is

__________ is used as a flux in the extraction of iron from iron ore (haematite) in blast furnace.

The main use of activated carbon in water treatment is to control

Vulcanisation of rubber

Commercial scale production of hydrogen from iron-steam reaction represented by, 3Fe + 3H₂O = Fe₃O₄ + 4H₂, is not practised, as it is

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

Cement setting under water employs a/an __________ process.

Phthalic anhydride is made by the

Raw materials used for producing __________ cement does not contain iron oxide.

Nylon-66 is manufactured from

Yellow glycerine is made into white, using

Which of the following is a disaccharide?

Dacron (or Terylene) fibres as compared to nylon fibres have

Which of the following impurities in feed water for high pressure boiler is the most detrimental?

Hydrazine is used in water treatment for the removal of

Which is the main reducing agent during production of iron from iron ore in a blast furnace?

Nitrile rubber is produced by the polymerisation of

Starting material for the production of butadiene in India is

Gelatine which is a nitrogenous organic protein is obtained by the hydrolysis of

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

Aryl benzene sulphonate (ABS) is a

Kaolin is a/an

Varnish does not contain

Pick out the wrong statement.

Also checkout

A mineral is termed as 'ore', if

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Shaving soaps are

Dechlorination of treated water is necessary to

Bakelite is

Thermoplastic materials

Highly porous refractory bricks are

Sulphur addition in soap is done to

The catalyst used in the production of elemental sulphur from H2S (by oxidation-reduction) is

__________ is used as a flux in the extraction of iron from iron ore (haematite) in blast furnace.

The main use of activated carbon in water treatment is to control

Vulcanisation of rubber

Commercial scale production of hydrogen from iron-steam reaction represented by, 3Fe + 3H2O = Fe3O4 + 4H2, is not practised, as it is

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

Cement setting under water employs a/an __________ process.

Phthalic anhydride is made by the

Raw materials used for producing __________ cement does not contain iron oxide.

Nylon-66 is manufactured from

Yellow glycerine is made into white, using

Which of the following is a disaccharide?

Dacron (or Terylene) fibres as compared to nylon fibres have

Which of the following impurities in feed water for high pressure boiler is the most detrimental?

Hydrazine is used in water treatment for the removal of

Which is the main reducing agent during production of iron from iron ore in a blast furnace?

Nitrile rubber is produced by the polymerisation of

Starting material for the production of butadiene in India is

Gelatine which is a nitrogenous organic protein is obtained by the hydrolysis of

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

Aryl benzene sulphonate (ABS) is a

Kaolin is a/an

Varnish does not contain

Pick out the wrong statement.

Also checkout

The catalyst used in the production of elemental sulphur from H₂S (by oxidation-reduction) is

Commercial scale production of hydrogen from iron-steam reaction represented by, 3Fe + 3H₂O = Fe₃O₄ + 4H₂, is not practised, as it is