During the absorption of HCl gas in water (to produce liquid HCl), the gas is kept above dew point to

Question

During the absorption of HCl gas in water (to produce liquid HCl), the gas is kept above dew point to

A. Increase the rate of absorption

B. Avoid corrosion

C. Reduce the cooling water circulation rate

D. None of these

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Catalytic oxidation of naphthalene produces

A. Styrene

B. Phenol

C. Phthalic anhydride

D. None of these

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Which of the following is an endothermic reaction?

A. Absorption of SO₃ in 98% H₂SO₄

B. C + H₂O = CO + H₂

C. Thermal dissociation of iron pyrites

D. Both (B) and (C)

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Raw materials used for producing __________ cement does not contain iron oxide.

A. Waterproof

B. Slag

C. White

D. Pozzolan

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Solvent used for extraction of oil is

A. Hexane

B. Methyl ethyl ketone

C. Furfural

D. None of these

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Acetone is produced by catalytic dehydrogenation of

A. Phenol

B. Naphthalene

C. Isopropanol

D. Ethyl benzene

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Thermal pyrolysis of ethylene dichloride produces

A. Trichloroethylene

B. Vinyl chloride

C. Ethanol amine

D. Ethylene oxide

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Solvay process as compared to dual process
(i.e. modified Solvay process).

A. Can use low grade brine

B. Has less corrosion problems

C. Involves higher investment in NH3 recovery units than that for crystallisation units for NH4Cl

D. Both (B) and (C)

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Which of the following is a co-product during the manufacture of caustic soda by electrolysis of brine?

A. Na₂CO₃

B. NaHCO₃

C. H₂

D. None of these

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Which of the following is a constituent of coffee?

A. Caffeine

B. Nicotine

C. Calgon

D. Lignin

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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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Paper grade bamboo contains about __________ percent cellulose.

A. 5

B. 20

C. 40

D. 60

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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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Metallic soap is __________ salt of fatty acids.

A. Sodium

B. Potassium

C. Both sodium & potassium

D. Aluminium or calcium

Discuss this answer

In contact process, SO₃ is absorbed in 97% H₂SO₄ and not in water, because

A. SO₃ gas is sparingly soluble in water

B. Water forms an acid mist, which is difficult to absorb

C. The purity of acid is affected

D. Scale formation in the absorber is to be avoided

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Metallic soap (e.g. aluminium or calcium salts of fatty acids) can be used

A. As a lubricant

B. As a rust preventive

C. In hard water for cleaning of cloth

D. As a foam depressant in distillation column

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Pick out the wrong statement.

A. Chamber process of sulphuric acid manufacture produces pure acid of concentration < 80%

B. Contact process of sulphuric acid manufacture produces pure acid of concentration ≥ 98%

C. 75% oleum can be produced by distillation of 20% oleum

D. Contact process of sulphuric acid manufacture uses nickel as the catalyst

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Na₂CO₃.10H₂O is called

A. Washing soda

B. Soda ash

C. Slaked lime

D. Quicklime

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Hydrolysis of sugar is called

A. Hydration

B. Inversion

C. Esterification

D. None of these

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Oil is a/an

A. Mixture of glycerides

B. Mixture of glycerides of fatty acids

C. Solid at normal temperature

D. Ester of alcohols other than glycerine

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Production of alcohol by fermentation of molasses is a/an __________ process.

A. Anaerobic

B. Aerobic

C. Endothermic

D. Both (B) and (C)

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The metallic aluminium is obtained from pure alumina in the presence of fused cryolite by

A. Electrolysis

B. Electrolytic reduction

C. Electrolytic oxidation

D. None of these

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Sucrose is a

A. Monosaccharide

B. Disaccharide

C. Polysaccharide

D. None of these

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Chlorine gas is produced by the electrolysis of brine (NaCl solution with solid NaCl make up) in mercury electrolytic cell. Which of the following is the anodic reaction?

A. Oxidation of Na⁺ ions

B. Oxidation of Cl^- ions

C. Reduction of Na⁺ ions

D. Reduction of Cl^- ions

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The major constituents of glass are

A. Lime, clay and soda ash

B. Sand, lime and soda ash

C. Silica, alumina and clay

D. Silica, alumina and soda ash

Discuss this answer

Fourdrinier machine is used in the manufacture of

A. Nylon-6

B. Paper

C. Antibiotics

D. Sugar

Discuss this answer

The temperature in the calcium carbide furnace is __________ °C.

A. 200-300

B. 700-850

C. 2000-2200

D. 4000-4500

Discuss this answer

The most popular and common detergent i.e., alkyl benzene sulfonate (ABS) is a/an __________ detergent.

A. Cationic

B. Anionic

C. Amphoteric

D. Semi polar

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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

Discuss this answer

Graphite is a/an

A. Electrical insulator

B. Allotrope of carbon

C. Moderator used in nuclear reactor

D. Both (B) and (C)

Discuss this answer

Mannheim furnace is used in the manufacture of

A. Hydrochloric acid

B. H₂SO₄ by Chamber process

C. Calcium carbide

D. Corundum

Discuss this answer

Accepted Answer

B. Avoid corrosion

During the absorption of HCl gas in water (to produce liquid HCl), the gas is kept above dew point to

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Catalytic oxidation of naphthalene produces

Which of the following is an endothermic reaction?

Raw materials used for producing __________ cement does not contain iron oxide.

Solvent used for extraction of oil is

Acetone is produced by catalytic dehydrogenation of

Thermal pyrolysis of ethylene dichloride produces

Solvay process as compared to dual process
(i.e. modified Solvay process).

Which of the following is a co-product during the manufacture of caustic soda by electrolysis of brine?

Which of the following is a constituent of coffee?

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

Paper grade bamboo contains about __________ percent cellulose.

Phenol formaldehyde resin is used as an adhesive in making

Metallic soap is __________ salt of fatty acids.

In contact process, SO₃ is absorbed in 97% H₂SO₄ and not in water, because

Metallic soap (e.g. aluminium or calcium salts of fatty acids) can be used

Pick out the wrong statement.

Na₂CO₃.10H₂O is called

Hydrolysis of sugar is called

Oil is a/an

Production of alcohol by fermentation of molasses is a/an __________ process.

The metallic aluminium is obtained from pure alumina in the presence of fused cryolite by

Sucrose is a

Chlorine gas is produced by the electrolysis of brine (NaCl solution with solid NaCl make up) in mercury electrolytic cell. Which of the following is the anodic reaction?

The major constituents of glass are

Fourdrinier machine is used in the manufacture of

The temperature in the calcium carbide furnace is __________ °C.

The most popular and common detergent i.e., alkyl benzene sulfonate (ABS) is a/an __________ detergent.

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

Graphite is a/an

Mannheim furnace is used in the manufacture of

Also checkout

During the absorption of HCl gas in water (to produce liquid HCl), the gas is kept above dew point to

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Catalytic oxidation of naphthalene produces

Which of the following is an endothermic reaction?

Raw materials used for producing __________ cement does not contain iron oxide.

Solvent used for extraction of oil is

Acetone is produced by catalytic dehydrogenation of

Thermal pyrolysis of ethylene dichloride produces

Solvay process as compared to dual process(i.e. modified Solvay process).

Which of the following is a co-product during the manufacture of caustic soda by electrolysis of brine?

Which of the following is a constituent of coffee?

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

Paper grade bamboo contains about __________ percent cellulose.

Phenol formaldehyde resin is used as an adhesive in making

Metallic soap is __________ salt of fatty acids.

In contact process, SO3 is absorbed in 97% H2SO4 and not in water, because

Metallic soap (e.g. aluminium or calcium salts of fatty acids) can be used

Pick out the wrong statement.

Na2CO3.10H2O is called

Hydrolysis of sugar is called

Oil is a/an

Production of alcohol by fermentation of molasses is a/an __________ process.

The metallic aluminium is obtained from pure alumina in the presence of fused cryolite by

Sucrose is a

Chlorine gas is produced by the electrolysis of brine (NaCl solution with solid NaCl make up) in mercury electrolytic cell. Which of the following is the anodic reaction?

The major constituents of glass are

Fourdrinier machine is used in the manufacture of

The temperature in the calcium carbide furnace is __________ °C.

The most popular and common detergent i.e., alkyl benzene sulfonate (ABS) is a/an __________ detergent.

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

Graphite is a/an

Mannheim furnace is used in the manufacture of

Also checkout

Solvay process as compared to dual process
(i.e. modified Solvay process).

In contact process, SO₃ is absorbed in 97% H₂SO₄ and not in water, because

Na₂CO₃.10H₂O is called