Bleaching powder (chemically known as calcium chloro hypochlorite) is commercially produced by the action of chlorine on

Question

Bleaching powder (chemically known as calcium chloro hypochlorite) is commercially produced by the action of chlorine on

A. Slaked lime

B. Soda lime

C. Calcium perchlorate

D. None of these

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The gasification reaction represented by, C + H₂O = CO + H₂, is a/an __________ reaction.

A. Exothermic

B. Endothermic

C. Catalytic

D. Autocatalytic

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Vinyl chloride (CH2 = CH.Cl) is produced by the thermal pyrolysis of ethylene dichloride at a pressure & temperature of

A. 4 kgf/cm² & 500°C

B. 10 kgf/cm² & 1000°C

C. 40 kg/cm² & 200°C

D. 100 kgf/cm² & 500°C

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Antibiotic

A. Inhibits/destroys the growth of microorganisms

B. Is used as a pain reliever

C. Is an antimalarial

D. Is an anaesthetic

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Pick out the wrong statement.

A. Kraft method of pulp manufacture can process all types of fibrous raw materials

B. Digestion time for bagasse is less than that for wood base materials

C. Both temperature and pressure in the digestor is less in case of the sulphite method as compared to that in the sulphate method

D. None of these

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Impurities present in brine is normally removed by treatment with

A. NH₃ and CO₂

B. Lime and soda ash

C. Lime, ammonia and carbon

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

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Chemical formula of oleum is

A. H₂SO₃

B. H₂SO₄

C. H₂S₂O₇

D. H₂SO₇

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Percentage of alcohol in beer may be around __________ percent.

A. 2-8

B. 18-23

C. 27-32

D. 1-4

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Air used in aerobic fermentation must be sterilized, otherwise the

A. Recovery of product will be difficult

B. Contamination of pure culture would result

C. Uniformity of product cannot be achieved

D. None of these

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Sea weeds are an important source of

A. Fluorine

B. Chlorine

C. Bromine

D. Iodine

Discuss this answer

Soaps remove dirt by

A. Increasing the surface tension

B. Decreasing wettability

C. Supplying hydrophilic group

D. None of these

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Synthetic glycerine is produced from

A. Toluene

B. Phenol

C. Propylene

D. Naphthalene

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Industrial production of chloroform requires acetone and

A. Phosgene

B. Calcium hypochlorite

C. Chlorine

D. Ammonium chloride

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One of the steps during refining of cane sugar consists of addition of hydrated lime to the sugar syrup followed by carbonation of the resulting solution. The purpose of this step is to

A. Adjust the pH of the syrup

B. Remove the coloring matter from the syrup

C. Reduce the viscosity of the syrup

D. Improve the rate of crystallisation of sugar

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Which of the following is an yellow pigment?

A. Titanium dioxide

B. Ferrous sulphate

C. Lead chromates

D. Zinc sulphides

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The most commonly used substance to speed up the sedimentation of sewage is

A. Lime

B. Sulphuric acid

C. Chlorine

D. Sodium bisulphite

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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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Platinum is a versatile catalyst for many processes in chemical industries. It is highly prone to be poisoned by the presence of

A. Carbon

B. Arsenic

C. Lead

D. Sulphur

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DDT should not be allowed to come in contact with iron (during its manufacture) to

A. Avoid its decomposition

B. Prevent sulphonation of the monochlorobenzene by the acid catalyst

C. Achieve non-hygroscopic property

D. None of these

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Zeolite used in water softening process (cation exchange) is regenerated by washing with

A. Brine

B. Chloramines

C. Sodium bisulphite

D. Liquid chlorines

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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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Exothermic neutralisation reaction between caustic soda and dodecylbenzene sulfonic acid produces sodium dodecylbenzene sulphate, which is a/an

A. Explosive

B. Soap

C. Detergent

D. Analgesic drug

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Rotary kiln is not involved in the production of

A. Cement

B. Lime from limestone

C. Slaked lime from quick lime

D. None of these

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Molecular weights of polymers are in the range of

A. 10² - 10²

B. 10⁵ - 10⁹

C. 10² - 10⁷

D. 10⁹ - 10¹¹

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Percentage of glycerine present in the spent lye obtained during soap manufacture is about

A. 0.5

B. 5

C. 20

D. 35

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Triple superphosphate is manufactured by reacting

A. Phosphate rock with phosphoric acid

B. Phosphate rock with sulphuric acid

C. Phosphate rock with nitric acid

D. Ammonium phosphate with phosphoric acid

Discuss this answer

Gypsum is chemically

A. Calcium chloride

B. Potassium sulphate

C. Sodium sulphate

D. Calcium sulphate

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Lithophane is

A. Explosive

B. White lead

C. Filter aid

D. ZnS (white pigment)

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Which of the following is the purest form of water out of the following?

A. Underground water

B. Rain water

C. Well water

D. Lake water

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Caprolactam (a raw material for nylon-6 manufacture) is produced from

A. Phenol

B. Naphthalene

C. Benzene

D. Pyridine

Discuss this answer

Which of the following is an explosive?

A. Nitro-glycerine

B. Trinitrotoluene (TNT)

C. Cellulose nitrate

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

Discuss this answer

Accepted Answer

A. Slaked lime

Bleaching powder (chemically known as calcium chloro hypochlorite) is commercially produced by the action of chlorine on

Correct Answer :

Show all Chemical Process MCQ

Related Questions

The gasification reaction represented by, C + H₂O = CO + H₂, is a/an __________ reaction.

Vinyl chloride (CH2 = CH.Cl) is produced by the thermal pyrolysis of ethylene dichloride at a pressure & temperature of

Antibiotic

Pick out the wrong statement.

Impurities present in brine is normally removed by treatment with

Chemical formula of oleum is

Percentage of alcohol in beer may be around __________ percent.

Air used in aerobic fermentation must be sterilized, otherwise the

Sea weeds are an important source of

Soaps remove dirt by

Synthetic glycerine is produced from

Industrial production of chloroform requires acetone and

One of the steps during refining of cane sugar consists of addition of hydrated lime to the sugar syrup followed by carbonation of the resulting solution. The purpose of this step is to

Which of the following is an yellow pigment?

The most commonly used substance to speed up the sedimentation of sewage is

Pick out the false statement pertaining to water treatment.

Platinum is a versatile catalyst for many processes in chemical industries. It is highly prone to be poisoned by the presence of

DDT should not be allowed to come in contact with iron (during its manufacture) to

Zeolite used in water softening process (cation exchange) is regenerated by washing with

Contact process of sulphuric acid manufacture

Exothermic neutralisation reaction between caustic soda and dodecylbenzene sulfonic acid produces sodium dodecylbenzene sulphate, which is a/an

Rotary kiln is not involved in the production of

Molecular weights of polymers are in the range of

Percentage of glycerine present in the spent lye obtained during soap manufacture is about

Triple superphosphate is manufactured by reacting

Gypsum is chemically

Lithophane is

Which of the following is the purest form of water out of the following?

Caprolactam (a raw material for nylon-6 manufacture) is produced from

Which of the following is an explosive?

Also checkout

Bleaching powder (chemically known as calcium chloro hypochlorite) is commercially produced by the action of chlorine on

Correct Answer :

Show all Chemical Process MCQ

Related Questions

The gasification reaction represented by, C + H2O = CO + H2, is a/an __________ reaction.

Vinyl chloride (CH2 = CH.Cl) is produced by the thermal pyrolysis of ethylene dichloride at a pressure & temperature of

Antibiotic

Pick out the wrong statement.

Impurities present in brine is normally removed by treatment with

Chemical formula of oleum is

Percentage of alcohol in beer may be around __________ percent.

Air used in aerobic fermentation must be sterilized, otherwise the

Sea weeds are an important source of

Soaps remove dirt by

Synthetic glycerine is produced from

Industrial production of chloroform requires acetone and

One of the steps during refining of cane sugar consists of addition of hydrated lime to the sugar syrup followed by carbonation of the resulting solution. The purpose of this step is to

Which of the following is an yellow pigment?

The most commonly used substance to speed up the sedimentation of sewage is

Pick out the false statement pertaining to water treatment.

Platinum is a versatile catalyst for many processes in chemical industries. It is highly prone to be poisoned by the presence of

DDT should not be allowed to come in contact with iron (during its manufacture) to

Zeolite used in water softening process (cation exchange) is regenerated by washing with

Contact process of sulphuric acid manufacture

Exothermic neutralisation reaction between caustic soda and dodecylbenzene sulfonic acid produces sodium dodecylbenzene sulphate, which is a/an

Rotary kiln is not involved in the production of

Molecular weights of polymers are in the range of

Percentage of glycerine present in the spent lye obtained during soap manufacture is about

Triple superphosphate is manufactured by reacting

Gypsum is chemically

Lithophane is

Which of the following is the purest form of water out of the following?

Caprolactam (a raw material for nylon-6 manufacture) is produced from

Which of the following is an explosive?

Also checkout

The gasification reaction represented by, C + H₂O = CO + H₂, is a/an __________ reaction.