Alum [Al₂(SO₄)₃] is used as a coagulant in water treatment to remove

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Alum [Al₂(SO₄)₃] is used as a coagulant in water treatment to remove

A. Colour

B. Turbidity

C. Bacteria

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

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The product obtained on mixing calcium oxide with water is called

A. Quicklime

B. Slaked lime

C. Milk of lime

D. None of these

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__________ Nature of hypo (sodium thiosulphate) makes it useful in photography.

A. Oxidising

B. Reducing

C. Complex forming

D. Photochemical

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Glauber's salt is chemically represented by

A. Na₂SO₄.10H₂O

B. CaCl(OCl)

C. CaSO₄.H₂O

D. (NH₄)₂SO₄

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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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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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A substance produced by a living organism and capable of anti-microbial activity is called a/an

A. Antibiotic

B. Antiseptic

C. Disinfectant

D. None of these

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Resistance to fusion of the refractory under a steady rising temperature condition is called

A. Spalling

B. Refractoriness

C. Both (A) & (B)

D. Neither (A) nor (B)

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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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Commonly used glass is known as the __________ glass.

A. Flint

B. Hard

C. Pyrex

D. Soda

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Oil is a/an

A. Mixture of glycerides

B. Mixture of glycerides of fatty acids

C. Solid at normal temperature

D. Ester of alcohols other than glycerine

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Very fine suspended and colloidal impurities are removed from water by a process called

A. Sedimentation

B. Coagulation

C. Disinfection

D. Softening

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Silicon carbide is a/an

A. Adhesive

B. Abrasive

C. Type of glass

D. Brittle material

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Chemical formula of BHC, which is an insecticide is

A. C₆H₆Cl₆

B. C₆Cl₆

C. C₆H₅Cl

D. C₆H₄Cl₂

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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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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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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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Nitro-glycerine absorbed in wood flour, sodium nitrate or ammonium nitrate is commercially used as controlled explosive called dynamite. The raw material used for its manufacture are glycerine, nitric acid and

A. Sulphuric acid

B. Phosphoric acid

C. Hydrochloric acid

D. Hydrofluoric acid

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Hydrogenation of oil does not

A. Remove double bonds

B. Raise its melting point

C. Improve its resistance to oxidation

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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__________ is used as a catalyst in fat splitting.

A. ZnO

B. Ni

C. V₂O₅

D. FeO

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Nickel is not used as a catalyst in the

A. Fischer-Tropsch process

B. Shift conversion

C. Hydrogenation of oil

D. Ostwald's process of HNO3 manufacture

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The most widely used coagulant for removing suspended impurities from water is

A. Bleaching powder

B. Chlorine

C. Calcium sulphate

D. Alum

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Hydrazine is largely used

A. As a starting material for 'hypo'

B. In photographic industry

C. As rocket fuel

D. In printing industry

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Brackish water which contains mostly dissolved salt, can be purified by the __________ process.

A. Reverse osmosis

B. Sand filter

C. Lime soda

D. Permutit

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Pick out the wrong statement.

A. Strongly caking coal should not be used in the Lurgi gasifier

B. Acetylene gas cannot be used for illumination purpose

C. Water gas is called blue gas because of the color of the flame, when it is burnt

D. Gaseous fuels require less percentage of excess air for combustion as compared to liquid fuels

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The catalyst used in the manufacture of DDT is

A. Alumina

B. Silica

C. 20% oleum

D. Aluminium chloride

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Poly Vinyl Chloride (P.V.C.) is a __________ material.

A. Thermosetting

B. Thermoplastic

C. Fibrous

D. Chemically active

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Portland cement consists mainly of

A. CaO & SiO₂

B. SiO₂ & Al₂O₃

C. CaO & Al₂O₃

D. CaO & Fe₂O₃

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Anion exchanger is regenerated usually with

A. NaOH

B. H2SO4

C. Hydrazine

D. Alum solution

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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

Discuss this answer

Accepted Answer

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

Alum [Al₂(SO₄)₃] is used as a coagulant in water treatment to remove

Correct Answer :

Show all Chemical Process MCQ

Related Questions

The product obtained on mixing calcium oxide with water is called

__________ Nature of hypo (sodium thiosulphate) makes it useful in photography.

Glauber's salt is chemically represented by

Builders are added in soap to act as

Pick out the wrong statement.

A substance produced by a living organism and capable of anti-microbial activity is called a/an

Resistance to fusion of the refractory under a steady rising temperature condition is called

Use of chlorine in the treatment of sewage

Commonly used glass is known as the __________ glass.

Oil is a/an

Very fine suspended and colloidal impurities are removed from water by a process called

Silicon carbide is a/an

Chemical formula of BHC, which is an insecticide is

Claude process of gas liquefaction employs

Reverse osmosis is normally used for the

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

Nitro-glycerine absorbed in wood flour, sodium nitrate or ammonium nitrate is commercially used as controlled explosive called dynamite. The raw material used for its manufacture are glycerine, nitric acid and

Hydrogenation of oil does not

Vulcanisation of rubber

__________ is used as a catalyst in fat splitting.

Nickel is not used as a catalyst in the

The most widely used coagulant for removing suspended impurities from water is

Hydrazine is largely used

Brackish water which contains mostly dissolved salt, can be purified by the __________ process.

Pick out the wrong statement.

The catalyst used in the manufacture of DDT is

Poly Vinyl Chloride (P.V.C.) is a __________ material.

Portland cement consists mainly of

Anion exchanger is regenerated usually with

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

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Alum [Al2(SO4)3] is used as a coagulant in water treatment to remove

Correct Answer :

Show all Chemical Process MCQ

Related Questions

The product obtained on mixing calcium oxide with water is called

__________ Nature of hypo (sodium thiosulphate) makes it useful in photography.

Glauber's salt is chemically represented by

Builders are added in soap to act as

Pick out the wrong statement.

A substance produced by a living organism and capable of anti-microbial activity is called a/an

Resistance to fusion of the refractory under a steady rising temperature condition is called

Use of chlorine in the treatment of sewage

Commonly used glass is known as the __________ glass.

Oil is a/an

Very fine suspended and colloidal impurities are removed from water by a process called

Silicon carbide is a/an

Chemical formula of BHC, which is an insecticide is

Claude process of gas liquefaction employs

Reverse osmosis is normally used for the

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

Nitro-glycerine absorbed in wood flour, sodium nitrate or ammonium nitrate is commercially used as controlled explosive called dynamite. The raw material used for its manufacture are glycerine, nitric acid and

Hydrogenation of oil does not

Vulcanisation of rubber

__________ is used as a catalyst in fat splitting.

Nickel is not used as a catalyst in the

The most widely used coagulant for removing suspended impurities from water is

Hydrazine is largely used

Brackish water which contains mostly dissolved salt, can be purified by the __________ process.

Pick out the wrong statement.

The catalyst used in the manufacture of DDT is

Poly Vinyl Chloride (P.V.C.) is a __________ material.

Portland cement consists mainly of

Anion exchanger is regenerated usually with

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

Also checkout

Alum [Al₂(SO₄)₃] is used as a coagulant in water treatment to remove