Soap cannot be used with hard water, because

Question

Soap cannot be used with hard water, because

A. Hard water contains sulphate

B. They form insoluble calcium soaps which precipitate

C. They attract back the removed dirt

D. None of these

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99.5% purity oxygen is used in

A. Cutting and welding by oxy-acetylene flame

B. Hospitals for medicinal purposes

C. Gas masks and artificial breathing apparatus

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

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Very dilute solutions are generally used in fermentation reactions for which the optimum temperature range is __________ °C.

A. -5 to 0

B. 5 to 10

C. 30 to 50

D. 75 to 80

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Hydrolysis of sugar is called

A. Hydration

B. Inversion

C. Esterification

D. None of these

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Fluorescent dyes are added in detergents to

A. Act as fabric brightener (by converting ultraviolet light to visible light) thereby improving the whiteness appearance of white fabrics

B. Attain distinctiveness from other brands

C. Act as tarnish inhibitor for metals like German silver

D. None of these

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Pick out the wrong statement.

A. Azoic dyes are mostly applied on cotton fabrics

B. Basic dyes (e.g. amino derivatives) are applied mostly to paper

C. Mordant dyes are applied mainly to wools

D. None of these

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Which of the following is an ore of iron?

A. Galena

B. Chalcopyrite

C. Hematite

D. Bauxite

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Catalyst used in the manufacture of sulphuric acid by chamber & contact processes are respectively

A. V₂O₅ & Cr₂O₃.

B. Oxides of nitrogen & Cr₂O₃

C. V₂O₅ on a porous carrier & oxides of nitrogen

D. Oxides of nitrogen & V₂O₅ on a porous carrier

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Conversion of SO2 to SO3 in Monsanto 4-pass converter is about __________ percent.

A. 80

B. 90

C. 98

D. 100

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Economics of 'Solvay Process' depends upon the efficiency of

A. Carbonating tower

B. Ammonia recovery

C. Ammonia recovery and size of the plant

D. Ammoniation of salt solution

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Liquor poisoning generally occurs due to the presence of __________ in it.

A. Ethyl alcohol

B. Impurities

C. Methyl alcohol

D. Carbonic acid

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In the manufacture of viscose rayon, the raw material used industrially is

A. Eucalyptus wood

B. Bamboo

C. Bagasse

D. Fine teak wood

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__________ glass is used for the manufacture of optical glass.

A. Pyrex

B. Soda

C. Flint

D. Crooke's

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Analgesic drugs are

A. Pain relievers

B. Antibiotics

C. Used in the treatment of T.B.

D. Used in the treatment of typhoid

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Varnish does not contain

A. Pigment

B. Thinner

C. Dryer

D. Anti-skimming agent

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Polythene is a/an __________ polymerisation product.

A. Addition

B. Condensation

C. Thermosetting

D. None of these

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Fat splitting catalyst is

A. CaCO₃

B. ZnO

C. Al₂O₃

D. Fe

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Higher viscosity index of a lubricating oil denotes

A. Less changes in fluidity of oil with temperature

B. Substantially high change in fluidity of oil with temperature

C. Its unsuitability under varying temperature conditions

D. None of these

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Chemical formula of 'salt cake' is

A. Na₂SO₄

B. CaSO₄

C. MgSO₄

D. BaSO₄

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Which of the following is an explosive?

A. Nitro-glycerine

B. Trinitrotoluene (TNT)

C. Cellulose nitrate

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

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The chamber process is

A. Preferred over contact process for producing 98 to 100% H₂SO₄ and various oleums

B. Non-catalytic and operates only on pyrites

C. A batch process for directly producing high strength (98 to 100%) H₂SO₄

D. None of these

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Fusel oil is a/an

A. Essential oil

B. Extract from medicinal herbs

C. Mixture of higher molecular weight alcohols (a by-product obtained during production of alcohol from molasses).

D. None of these

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Temporary hardness of water can be removed by

A. Addition of alum (a coagulant)

B. Boiling

C. Filtration (through gravity sand filter)

D. Addition of lime

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In sulphate pulp manufacture, the pressure and temperature in the digestor is

A. 10 atm., 800 °C

B. 10 atm., 170-180°C

C. 1 atm., 170 - 180°C

D. 1 atm., 800°C

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Main product in calcium carbide-water reaction is

A. Ca(OH)₂

B. C₂H₂

C. CO₂

D. CaCO₃

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Soap cannot be used with hard water, because

A. Hard water contains sulphate

B. They form insoluble calcium soaps which precipitate

C. They attract back the removed dirt

D. None of these

Discuss this answer

Sulphuric acid saturated with SO₃ is called

A. Concentrated H₂SO₄

B. Sulphurous acid

C. Oleum

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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Catalytic oxidation of toluene produces

A. Styrene

B. Phenol

C. Benzene

D. Tri-nitro-toluene

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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

Discuss this answer

Which of the following is used as a binding material in soap to improve soap texture?

A. Rosin

B. Borax

C. Benzyl acetate

D. Sodium carbonate

Discuss this answer

Accepted Answer

B. They form insoluble calcium soaps which precipitate

Soap cannot be used with hard water, because

Correct Answer :

Show all Chemical Process MCQ

Related Questions

99.5% purity oxygen is used in

Very dilute solutions are generally used in fermentation reactions for which the optimum temperature range is __________ °C.

Hydrolysis of sugar is called

Fluorescent dyes are added in detergents to

Pick out the wrong statement.

Which of the following is an ore of iron?

Catalyst used in the manufacture of sulphuric acid by chamber & contact processes are respectively

Conversion of SO2 to SO3 in Monsanto 4-pass converter is about __________ percent.

Economics of 'Solvay Process' depends upon the efficiency of

Liquor poisoning generally occurs due to the presence of __________ in it.

In the manufacture of viscose rayon, the raw material used industrially is

__________ glass is used for the manufacture of optical glass.

Analgesic drugs are

Varnish does not contain

Polythene is a/an __________ polymerisation product.

Fat splitting catalyst is

Higher viscosity index of a lubricating oil denotes

Chemical formula of 'salt cake' is

Which of the following is an explosive?

The chamber process is

Fusel oil is a/an

Temporary hardness of water can be removed by

In sulphate pulp manufacture, the pressure and temperature in the digestor is

Main product in calcium carbide-water reaction is

Soap cannot be used with hard water, because

Sulphuric acid saturated with SO₃ is called

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

Catalytic oxidation of toluene produces

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

Which of the following is used as a binding material in soap to improve soap texture?

Also checkout

Soap cannot be used with hard water, because

Correct Answer :

Show all Chemical Process MCQ

Related Questions

99.5% purity oxygen is used in

Very dilute solutions are generally used in fermentation reactions for which the optimum temperature range is __________ °C.

Hydrolysis of sugar is called

Fluorescent dyes are added in detergents to

Pick out the wrong statement.

Which of the following is an ore of iron?

Catalyst used in the manufacture of sulphuric acid by chamber & contact processes are respectively

Conversion of SO2 to SO3 in Monsanto 4-pass converter is about __________ percent.

Economics of 'Solvay Process' depends upon the efficiency of

Liquor poisoning generally occurs due to the presence of __________ in it.

In the manufacture of viscose rayon, the raw material used industrially is

__________ glass is used for the manufacture of optical glass.

Analgesic drugs are

Varnish does not contain

Polythene is a/an __________ polymerisation product.

Fat splitting catalyst is

Higher viscosity index of a lubricating oil denotes

Chemical formula of 'salt cake' is

Which of the following is an explosive?

The chamber process is

Fusel oil is a/an

Temporary hardness of water can be removed by

In sulphate pulp manufacture, the pressure and temperature in the digestor is

Main product in calcium carbide-water reaction is

Soap cannot be used with hard water, because

Sulphuric acid saturated with SO3 is called

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

Catalytic oxidation of toluene produces

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

Which of the following is used as a binding material in soap to improve soap texture?

Also checkout

Sulphuric acid saturated with SO₃ is called