Proximate analysis of coal determines its __________ content.

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Proximate analysis of coal determines its __________ content.

A. Moisture, ash, sulphur & volatile matter

B. Moisture & volatile matter

C. Moisture, sulphur, nitrogen & fixed carbon

D. None of these

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The main aim behind cooling the digested chip at the bottom portion of the digestor by injecting cold black liquor is to

A. Avoid mechanical weakening of fibre

B. Remove lignin by way of crystallisation

C. Increase the cellulose content

D. None of these

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P.T.F.E. (Poly tetra fluoro ethylene) is commercially known as

A. Bakelite

B. Neoprene

C. Teflon

D. Nylon-66

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Sodium salt of higher molecular weight fatty acid is termed as the __________ soap.

A. Hard

B. Soft

C. Metallic

D. Lubricating

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Hard water

A. Does not affect the lather formation by soap

B. Is not unfit for drinking purpose

C. Pollutes the water stream

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

Discuss this answer

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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Rosin soap is added during paper manufacture to

A. Impart adhesive properties

B. Improve opacity

C. Impart resistance to penetration by liquids

D. None of these

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RDX (an explosive), which is more sensitive but less toxic than TNT, is chemically

A. Cyclo trimethylene trinitramine

B. Trinitro resorcinol

C. Cyclo tetramethylene tetranitramine

D. Trinitrobenzene

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Phenol formaldehyde resin is used as an adhesive in making

A. Laminates

B. Card boxes

C. Furniture

D. Books

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Chemical name of 'alum' is

A. Barium sulphate

B. Aluminium sulphate

C. Aluminium chloride

D. Calcium sulphate

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For the hydrogenation of oils, (i) is commonly used as catalyst and (ii) is a catalyst poison.

A. (i) platinum (ii) sulphur

B. (i) palladium (ii) oxygen

C. (i) nickel (ii) sulphur

D. (i) nickel (ii) oxygen

Discuss this answer

Carborundum consists mainly of

A. Bauxite

B. Silicon carbide

C. Boron carbide

D. Calcium carbide

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Dry ice (solidified CO₂) is used for the

A. Storage & shipment of frozen foods and ice-creams

B. Liquefaction of permanent gases

C. Liquefaction of natural gas

D. None of these

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CO & H₂ are the constituents of

A. Producer gas

B. Water gas

C. Coke oven gas

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

Discuss this answer

Pick out the wrong statement.

A. Eosin requirement in tallow soap is about 40-50% which fastens the lather formation, softens the hard soaps and increases its cleansing action

B. Soap powder is prepared by mixing soap with hydrated sodium carbonate

C. Detergents differ from soaps in their action in hard water

D. Tarnish inhibitor (e.g., Benzotriazole) is added in soap to facilitate the removal of stains due to tea, blood etc

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Sucrose is a disaccharide consisting of

A. Glucose and glucose

B. Glucose and fructose

C. Glucose and galactose

D. Fructose and galactose

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Baking soda is chemically represented by

A. Na₂CO₃

B. NaHCO₃

C. Na₂CO₃.H₂O

D. Na₂CO₃.10H₂O

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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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Which of the following is not a pyrite ore?

A. Celestite

B. Galena

C. Gypsum

D. Siderite

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Carbon tetrachloride (CCl₄) is the starting raw material for the manufacture of

A. Trichloroethylene

B. Perchloroethylene

C. Parathion

D. Methanol

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Glycerine can be obtained from

A. Fat

B. Naphthalene

C. Cumene

D. Sucrose

Discuss this answer

Which of the following, when pyrolysed, produces Perchloroethylene?

A. Ethylene dichloride

B. Chlorobenzene

C. Carbon tetrachloride

D. Chlorinated paraffin

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Naphthols are derivates of

A. Methyl amine

B. Naphthalene

C. Phenol

D. Xylene

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Graphite is a/an

A. Electrical insulator

B. Allotrope of carbon

C. Moderator used in nuclear reactor

D. Both (B) and (C)

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The process involved in converting rubber into a thin sheet or coating it on fabric is called

A. Extrusion

B. Mastication

C. Calendaring

D. Vulcanisation

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Chemical formula of oleum is

A. H₂SO₃

B. H₂SO₄

C. H₂S₂O₇

D. H₂SO₇

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Raw materials for 'Solvay Process' for manufacture of the soda ash are

A. Salt, limestone and coke or gas

B. Ammonia, salt and limestone

C. Ammonia limestone and coke

D. None of these

Discuss this answer

Epoxy resin

A. Is a good adhesive

B. Is an elastomer

C. Cannot be used for surface coatings

D. Is a polyester

Discuss this answer

Blue colour is imparted to glass by the addition of

A. FeSO₄

B. PbO

C. CaO

D. NaOH

Discuss this answer

__________ of quicklime produces slaked lime.

A. Hydration

B. Dehydration

C. Hydrogenation

D. None of these

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Presence of carbonaceous matter in the sewage

A. Causes reduction in its dissolved oxygen content thereby endangering the life of aquatic creatures

B. Reduces sulphate ions to sulphides causing obnoxious smell

C. Increases the quantity of chlorine used for its purification

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

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Accepted Answer

B. Moisture & volatile matter

Proximate analysis of coal determines its __________ content.

Correct Answer :

Show all Chemical Process MCQ

Related Questions

The main aim behind cooling the digested chip at the bottom portion of the digestor by injecting cold black liquor is to

P.T.F.E. (Poly tetra fluoro ethylene) is commercially known as

Sodium salt of higher molecular weight fatty acid is termed as the __________ soap.

Hard water

Sulphur addition in soap is done to

Rosin soap is added during paper manufacture to

RDX (an explosive), which is more sensitive but less toxic than TNT, is chemically

Phenol formaldehyde resin is used as an adhesive in making

Chemical name of 'alum' is

For the hydrogenation of oils, (i) is commonly used as catalyst and (ii) is a catalyst poison.

Carborundum consists mainly of

Dry ice (solidified CO₂) is used for the

CO & H₂ are the constituents of

Pick out the wrong statement.

Sucrose is a disaccharide consisting of

Baking soda is chemically represented by

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

Which of the following is not a pyrite ore?

Carbon tetrachloride (CCl₄) is the starting raw material for the manufacture of

Glycerine can be obtained from

Which of the following, when pyrolysed, produces Perchloroethylene?

Naphthols are derivates of

Graphite is a/an

The process involved in converting rubber into a thin sheet or coating it on fabric is called

Chemical formula of oleum is

Raw materials for 'Solvay Process' for manufacture of the soda ash are

Epoxy resin

Blue colour is imparted to glass by the addition of

__________ of quicklime produces slaked lime.

Presence of carbonaceous matter in the sewage

Also checkout

Proximate analysis of coal determines its __________ content.

Correct Answer :

Show all Chemical Process MCQ

Related Questions

The main aim behind cooling the digested chip at the bottom portion of the digestor by injecting cold black liquor is to

P.T.F.E. (Poly tetra fluoro ethylene) is commercially known as

Sodium salt of higher molecular weight fatty acid is termed as the __________ soap.

Hard water

Sulphur addition in soap is done to

Rosin soap is added during paper manufacture to

RDX (an explosive), which is more sensitive but less toxic than TNT, is chemically

Phenol formaldehyde resin is used as an adhesive in making

Chemical name of 'alum' is

For the hydrogenation of oils, __________ (i) __________ is commonly used as catalyst and __________ (ii) __________ is a catalyst poison.

Carborundum consists mainly of

Dry ice (solidified CO2) is used for the

CO & H2 are the constituents of

Pick out the wrong statement.

Sucrose is a disaccharide consisting of

Baking soda is chemically represented by

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

Which of the following is not a pyrite ore?

Carbon tetrachloride (CCl4) is the starting raw material for the manufacture of

Glycerine can be obtained from

Which of the following, when pyrolysed, produces Perchloroethylene?

Naphthols are derivates of

Graphite is a/an

The process involved in converting rubber into a thin sheet or coating it on fabric is called

Chemical formula of oleum is

Raw materials for 'Solvay Process' for manufacture of the soda ash are

Epoxy resin

Blue colour is imparted to glass by the addition of

__________ of quicklime produces slaked lime.

Presence of carbonaceous matter in the sewage

Also checkout

For the hydrogenation of oils, (i) is commonly used as catalyst and (ii) is a catalyst poison.

Dry ice (solidified CO₂) is used for the

CO & H₂ are the constituents of

Carbon tetrachloride (CCl₄) is the starting raw material for the manufacture of