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

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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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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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Which of the following is not present in bagasse fibre?

A. Cellulose

B. Lignin

C. Pentogens

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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Producer gas consists mainly of

A. CO, CO₂ N₂, H₂

B. CO, H₂

C. H₂, CH₄

D. C₂H₂, CO₂, H₂

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__________ is a polysaccharide.

A. Maltose

B. Starch

C. Sucrose

D. Glucose

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Paper grade bamboo contains about __________ percent cellulose.

A. 5

B. 20

C. 40

D. 60

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Separation of fresh water from sea water can be done by the __________ operation.

A. Osmosis

B. Reverse osmosis

C. Absorption

D. Adsorption

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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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Coagulant is used __________ filtration.

A. Before

B. After

C. During

D. To avoid

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Glauber's salt is chemically

A. Calcium sulphate

B. Potassium sulphate

C. Potassium chlorate

D. None of these

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Phenol formaldehyde is produced by condensation polymerisation. It is also known as

A. Teflon

B. Bakelite

C. Polyester

D. Nylon-66

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Glass is

A. Mainly CaO

B. Subjected to galvanising

C. A super cooled liquid

D. All (A), (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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A cane sugar factory having sugar production rate of 10 tons/day will produce about __________ tons/day of bagasse (after consumption by the factory for heating etc.).

A. 1

B. 10

C. 25

D. 40

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High magnesia lime is added to hot sugar cane juice (during the manufacture of sugar) to

A. Flocculate the impurities

B. Facilitate fast filtration

C. Both (A) and (B)

D. Neither (A) nor (B)

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Presence of H₂S in raw water (to be chlorinated) results in the

A. Reduced softening capacity of zeolite

B. Increased dosage of chlorine to provide a disinfecting residual in the water

C. Easy removal of its hardness

D. None of these

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Which one of the following is not an elastomer?

A. Polyisoprene

B. Neoprene

C. Nitrile-butadiene

D. None of these

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__________ iron is the purest form of iron.

A. Cast

B. Wrought

C. Pig

D. High silicon

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Contact process of sulphuric acid manufacture

A. Yields acid of higher concentration than chamber process

B. Yields acids of lower concentration than chamber process

C. Is obsolete

D. Eliminates absorber

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Lime and soda ash are added to water to remove

A. Bicarbonates & sulphates of calcium and magnesium

B. Undesirable taste and odour

C. Bacteria

D. Its corrosiveness

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Fusion of limestone and __________ produces high alumina cement.

A. Sand

B. Bauxite

C. Quicklime

D. Calcite

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__________ is the major constituent of the Portland cement.

A. Calcium carbonate

B. Calcium oxide

C. Tricalcium silicate

D. Calcium sulphate

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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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Polymerisation product of C2F4 (carbon tetrafluoride) is called P.T.F.E (poly chloro tetra fluoro ethylene). It is also called

A. Polyurethane

B. Silicone

C. Teflon

D. Epoxy resin

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Co-efficient of thermal expansion of glass is decreased by the addition of __________ during its manufacture.

A. CaO

B. MnO₂

C. ZnO

D. FeS

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Gun powder, which is an explosive comprises of charcoal, sulphur and

A. Glycerine

B. Salt petre

C. Nitro glycerine

D. Dynamite

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Pick out the wrong statement.

A. Fibrillation of fibre during paper manufacture is done to develop the strength in paper

B. Alkali consumption in digestion/cooking of bamboo is measured in terms of permanganate number

C. Bagasse fibre contains both lignin & cellulose

D. Presence of sodium sulphate in pulp makes the pulp bleachability poor

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Yeast is used in the manufacture of

A. Penicillin

B. Antibiotics

C. Wine

D. Pasteurised milk

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Pick out the endothermic reaction out of the following.

A. C+ ½O₂ = CO

B. CO + 3H₂ = CH₄ + H₂O

C. CaCO₃ = CaO + CO₂

D. CO + ½O₂ = CO₂

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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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Accepted Answer

A. Antibiotic

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

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Graphite is a/an

Which of the following is not present in bagasse fibre?

Builders are added in soap to act as

Producer gas consists mainly of

__________ is a polysaccharide.

Paper grade bamboo contains about __________ percent cellulose.

Separation of fresh water from sea water can be done by the __________ operation.

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

Coagulant is used __________ filtration.

Glauber's salt is chemically

Phenol formaldehyde is produced by condensation polymerisation. It is also known as

Glass is

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

A cane sugar factory having sugar production rate of 10 tons/day will produce about __________ tons/day of bagasse (after consumption by the factory for heating etc.).

High magnesia lime is added to hot sugar cane juice (during the manufacture of sugar) to

Presence of H₂S in raw water (to be chlorinated) results in the

Which one of the following is not an elastomer?

__________ iron is the purest form of iron.

Contact process of sulphuric acid manufacture

Lime and soda ash are added to water to remove

Fusion of limestone and __________ produces high alumina cement.

__________ is the major constituent of the Portland cement.

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

Polymerisation product of C2F4 (carbon tetrafluoride) is called P.T.F.E (poly chloro tetra fluoro ethylene). It is also called

Co-efficient of thermal expansion of glass is decreased by the addition of __________ during its manufacture.

Gun powder, which is an explosive comprises of charcoal, sulphur and

Pick out the wrong statement.

Yeast is used in the manufacture of

Pick out the endothermic reaction out of the following.

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

Also checkout

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

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Graphite is a/an

Which of the following is not present in bagasse fibre?

Builders are added in soap to act as

Producer gas consists mainly of

__________ is a polysaccharide.

Paper grade bamboo contains about __________ percent cellulose.

Separation of fresh water from sea water can be done by the __________ operation.

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

Coagulant is used __________ filtration.

Glauber's salt is chemically

Phenol formaldehyde is produced by condensation polymerisation. It is also known as

Glass is

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

A cane sugar factory having sugar production rate of 10 tons/day will produce about __________ tons/day of bagasse (after consumption by the factory for heating etc.).

High magnesia lime is added to hot sugar cane juice (during the manufacture of sugar) to

Presence of H2S in raw water (to be chlorinated) results in the

Which one of the following is not an elastomer?

__________ iron is the purest form of iron.

Contact process of sulphuric acid manufacture

Lime and soda ash are added to water to remove

Fusion of limestone and __________ produces high alumina cement.

__________ is the major constituent of the Portland cement.

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

Polymerisation product of C2F4 (carbon tetrafluoride) is called P.T.F.E (poly chloro tetra fluoro ethylene). It is also called

Co-efficient of thermal expansion of glass is decreased by the addition of __________ during its manufacture.

Gun powder, which is an explosive comprises of charcoal, sulphur and

Pick out the wrong statement.

Yeast is used in the manufacture of

Pick out the endothermic reaction out of the following.

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

Also checkout

Presence of H₂S in raw water (to be chlorinated) results in the

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

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