Carboxymethyl cellulose (CMC) is added in detergents to act as a/an

Question

Carboxymethyl cellulose (CMC) is added in detergents to act as a/an

A. Surfactant

B. Builder

C. Optical brightening agent

D. Anti soil redeposition agent

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Salt is the basic raw material for the manufacture of

A. Cement

B. Glass

C. Potteries

D. Caustic soda

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Alum is commercially produced from

A. Gypsum

B. Feldspar

C. Galena

D. Bauxite

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Pick out the wrong statement.

A. Dry process is used for the manufacture of cement, when the raw material is blast furnace slag

B. Portland cement is made employing wet process

C. Gypsum is added to Portland cement to lengthen its setting time

D. None of these

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Cement mainly contains

A. CaO, SiO₂, Al₂O₃

B. MgO, SiO₂, K₂O

C. Al₂O₃, MgO, Fe₂O₃

D. CaO, MgO, K₂O

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Pick out the wrong statement pertaining to solvent extraction of oil. Rate of extraction

A. Decreases with decrease of thickness of the flakes

B. Increases with the increasing flake size keeping the flake thickness constant

C. Increases considerably with the rise of temperature

D. Decreases as the moisture content of flakes increases

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Oil produced by solvent extraction

A. Has low free fatty acid content

B. Is odourless

C. Both (A) & (B)

D. Neither (A) nor (B)

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Styrene (a monomer for the production of polystyrene) is commercially produced by

A. Catalytic dehydrogenation of ethyl benzene

B. Dehydration of ethyl alcohol followed by hydrogenation

C. Reacting ethylene oxide with acetaldehyde

D. Fermentation of starch

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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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Yellow glycerine is made into white, using

A. Activated carbon

B. Diatomaceous earth

C. Bauxite

D. Bentonite

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__________ is a thermosetting plastic.

A. Polythene

B. Epoxy polymer

C. P.V.C.

D. Polystyrene

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Which catalyst is used in the manufacture of ethylene oxide by oxidation of ethylene?

A. AgO

B. Al₂O₃

C. ZnCl₂

D. Fe₂O₃

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Ethanol amine is produced using ammonia and

A. Ethyl benzene

B. Ethylene oxide

C. Ethanol

D. Ethane

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Addition of calcium oxide to water produces

A. Exothermic heat

B. Hissing sound

C. Slaked lime

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

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Catalyst used in the oxidation of benzene to produce Maleic anhydride is

A. V₂O₅

B. Pt

C. Ni

D. Cr

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The catalyst used in the manufacture of DDT (from chloral and chlorobenzene) is

A. Dilute H₂SO₄

B. Oleum

C. Ultraviolet light

D. None of these

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Neoprene is the trade name of

A. Polyurethane

B. Phenol formaldehyde

C. Polychlorophrene

D. Styrene-butadiene rubber

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Which of the following sugars is the sweetest?

A. Glucose

B. Fructose

C. Sucrose

D. Lactose

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Pick out the false statement pertaining to water treatment.

A. Aeration of water is effective in CO2 removal

B. The zeolite water softening process reduces the hardness of water by not more than 50%

C. Sodium sulphate or sodium carbonate do not cause hardness in water

D. Water with pH value less than 7, is acidic

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Margarine is a/an

A. Fat

B. Explosive

C. Plasticiser

D. Rocket propellant

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Process conditions in fermentator used for production of penicillin is

A. 25°C, 2 atm

B. 50°C, l0 atm

C. 30°C, 200 mm Hg (absolute)

D. 90°C, 45 atm

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The drug used in contraceptives is

A. Sulfadiazine

B. Mestranol

C. Methyl salicylate

D. Penicillin

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Which of the following is not a food additive?

A. Citric acid

B. Invertage

C. Benzoyl peroxide

D. Ammonium chloride

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Coloured glass is obtained by mixing of colored salts. Addition of __________ oxide is done to impart greenish blue color to the glass.

A. Chromium

B. Arsenic

C. Copper

D. Manganese

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In the production of soda ash by Solvay process, the by-product is

A. CaCl₂

B. NH₄Cl

C. NH₃

D. NaOH

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Calcination of limestone is not done in a __________ kiln for producing lime.

A. Vertical shaft

B. Rotary

C. Fluidised bed

D. Fixed bed

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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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Alkylbenzene sulfonate (ABS) is a

A. Detergent

B. Rubber

C. Pesticide

D. Polyester

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Most easily and cheaply available fibrous raw material for paper manufacture available in India is bamboo. The yield of pulp produced from fibrous raw material by mechanical process is about __________ percent.

A. 75

B. < 10

C. > 30

D. 50

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Pick out the wrong statement.

A. Catalytic hydrogenation of carbon monoxide produces methyl alcohol

B. In nylon-6, the number 6 represents the total number of carbon atoms in the ring

C. Raw materials for DDT manufacture are benzene and chlorine

D. Ethanolamines are produced by using ammonia and ethylene oxide as raw material

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Which of the following is not produced on commercial scale from sea water?

A. Bromine

B. Magnesium compounds

C. Potassium compounds

D. Sodium sulphate

Discuss this answer

Accepted Answer

D. Anti soil redeposition agent

Carboxymethyl cellulose (CMC) is added in detergents to act as a/an

Correct Answer :

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Related Questions

Salt is the basic raw material for the manufacture of

Alum is commercially produced from

Pick out the wrong statement.

Cement mainly contains

Pick out the wrong statement pertaining to solvent extraction of oil. Rate of extraction

Oil produced by solvent extraction

Styrene (a monomer for the production of polystyrene) is commercially produced by

Builders are added in soap to act as

Yellow glycerine is made into white, using

__________ is a thermosetting plastic.

Which catalyst is used in the manufacture of ethylene oxide by oxidation of ethylene?

Ethanol amine is produced using ammonia and

Addition of calcium oxide to water produces

Catalyst used in the oxidation of benzene to produce Maleic anhydride is

The catalyst used in the manufacture of DDT (from chloral and chlorobenzene) is

Neoprene is the trade name of

Which of the following sugars is the sweetest?

Pick out the false statement pertaining to water treatment.

Margarine is a/an

Process conditions in fermentator used for production of penicillin is

The drug used in contraceptives is

Which of the following is not a food additive?

Coloured glass is obtained by mixing of colored salts. Addition of __________ oxide is done to impart greenish blue color to the glass.

In the production of soda ash by Solvay process, the by-product is

Calcination of limestone is not done in a __________ kiln for producing lime.

Chemical name of 'alum' is

Alkylbenzene sulfonate (ABS) is a

Most easily and cheaply available fibrous raw material for paper manufacture available in India is bamboo. The yield of pulp produced from fibrous raw material by mechanical process is about __________ percent.

Pick out the wrong statement.

Which of the following is not produced on commercial scale from sea water?

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