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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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In multistage equilibrium conversion of SO₂ to SO₃ (2SO₂ + O₂ 2SO₃), the reverse reaction becomes appreciable at a temperature of 550° C. The percentage equilibrium conversion of SO₂ to SO₃ can be increased by

A. Increasing the oxygen concentration

B. Putting more quantity of V2O5 catalyst in the converter

C. Removing some quantity of SO3 during intermediate stage

D. Maintaining low temperature & pressure in the converter

Discuss this answer

Raw materials for 'Solvay Process' for manufacture of the soda ash are

A. Salt, limestone and coke or gas

B. Ammonia, salt and limestone

C. Ammonia limestone and coke

D. None of these

Discuss this answer

Celluloid is chemically

A. Cellulose acetate

B. Regenerated cellulose

C. Cellulose nitrate

D. Cellulose acetate butyrate

Discuss this answer

Linde process of gas liquefaction employs

A. Exchange of heat with colder stream

B. Adiabatic expansion through a throttle valve (Joule-Thomson expansion)

C. Adiabatic expansion against a piston or in a turbine

D. Merely compressing the gas beyond its critical pressure

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Oxygen is separated by distillation from air after its liquefaction. The boiling point of oxygen is about __________ °C.

A. -83

B. -183

C. -196

D. -218

Discuss this answer

Finely ground calcium aluminate & silicate is a/an

A. Cermet

B. Cement

C. Abrasive

D. Explosive

Discuss this answer

Production of one ton of dry paper pulp requires about __________ tons of bamboo or wood.

A. 1

B. 2.5

C. 5

D. 10

Discuss this answer

Heating of __________ to 120°C, produces plaster of paris.

A. Blue vitriol

B. Gypsum

C. Calcium silicate

D. Calcium sulphate

Discuss this answer

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

Discuss this answer

Permanent hardness of water can be removed by

A. Simply boiling

B. Adding alum

C. Passing it through cation & anion exchangers

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

Discuss this answer

Lindane is

A. Not a fumigant

B. BHC (Benzene Hexachloride) containing 99% γ-isomer

C. A by-product of BHC manufacture

D. Both (B) and (C)

Discuss this answer

Absorption of SO3 in 97% H2SO4 is

A. Exothermic

B. Endothermic

C. Not possible

D. None of these

Discuss this answer

Vegetable oils and fats basically differ in their

A. Density ranges

B. Physical state

C. Chemical composition

D. Chemical properties

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Bakelite is

A. Same as Polytetrafluoroethylene (PTFE)

B. An inorganic polymer

C. Same as thermosetting phenol-formaldehyde

D. Not a polymer

Discuss this answer

Permanent hardness of water can be removed by

A. Boiling

B. Adding Ca(OH)₂

C. Boiling it with Na₂CO₃

D. None of these

Discuss this answer

At a given temperature, the equilibrium yield of SO3 obtained from the oxidation of SO2 is proportional to (where, P = pressure of the system).

A. P

B. √P

C. P²

D. 1/P

Discuss this answer

Washing soda is chemically represented by

A. Na₂CO₃

B. Na₂CO₃.H₂O

C. Na₂CO₃.10H₂O

D. NaHCO₃

Discuss this answer

Paper grade bamboo contains about __________ percent cellulose.

A. 5

B. 20

C. 40

D. 60

Discuss this answer

The process used for the manufacture of ethyl alcohol from molasses is

A. Distillation

B. Dehydration

C. Dehydrogenation

D. None of these

Discuss this answer

__________ is produced using Polycondensation reaction.

A. Polythene

B. Phenol formaldehyde

C. Poly vinyl chloride

D. None of these

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Cooking liquor in case of sulphite process is

A. Sodium sulphite and sodium bisulphite

B. Magnesium sulphite and free SO2 in acid medium

C. Magnesium sulphate and magnesium bicarbonate

D. None of these

Discuss this answer

Main product in calcium carbide-water reaction is

A. Ca(OH)₂

B. C₂H₂

C. CO₂

D. CaCO₃

Discuss this answer

Phenol is mainly used

A. To produce benzene

B. To produce phenol formaldehyde

C. To produce polyester resin

D. As a plasticiser for unsaturated polyester

Discuss this answer

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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Sucrose is a disaccharide consisting of

A. Glucose and glucose

B. Glucose and fructose

C. Glucose and galactose

D. Fructose and galactose

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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

Discuss this answer

Temperature during hydrogenation of oil should not be more than 200°C, otherwise it will result in

A. Pyrolysis of oil

B. Sintering of porous catalyst

C. Hydrogen embrittlement

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

Discuss this answer

Trinitro-toluene (TNT) is

A. Used in glycerine manufacture

B. An explosive

C. Used in dye manufacture

D. None of these

Discuss this answer

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

A. Phenol

B. Naphthalene

C. Benzene

D. Pyridine

Discuss this answer

Le-Blanc process is a primitive process for the manufacture of

A. Caustic soda

B. Soda ash

C. Bromine from sea water

D. Hydrochloric acid

Discuss this answer

Accepted Answer

D. None of these

Pick out the wrong statement.

Correct Answer :

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Related Questions

In multistage equilibrium conversion of SO₂ to SO₃ (2SO₂ + O₂ 2SO₃), the reverse reaction becomes appreciable at a temperature of 550° C. The percentage equilibrium conversion of SO₂ to SO₃ can be increased by

Raw materials for 'Solvay Process' for manufacture of the soda ash are

Celluloid is chemically

Linde process of gas liquefaction employs

Oxygen is separated by distillation from air after its liquefaction. The boiling point of oxygen is about __________ °C.

Finely ground calcium aluminate & silicate is a/an

Production of one ton of dry paper pulp requires about __________ tons of bamboo or wood.

Heating of __________ to 120°C, produces plaster of paris.

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

Permanent hardness of water can be removed by

Lindane is

Absorption of SO3 in 97% H2SO4 is

Vegetable oils and fats basically differ in their

Bakelite is

Permanent hardness of water can be removed by

At a given temperature, the equilibrium yield of SO3 obtained from the oxidation of SO2 is proportional to (where, P = pressure of the system).

Washing soda is chemically represented by

Paper grade bamboo contains about __________ percent cellulose.

The process used for the manufacture of ethyl alcohol from molasses is

__________ is produced using Polycondensation reaction.

Cooking liquor in case of sulphite process is

Main product in calcium carbide-water reaction is

Phenol is mainly used

Addition of calcium oxide to water produces

Sucrose is a disaccharide consisting of

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

Temperature during hydrogenation of oil should not be more than 200°C, otherwise it will result in

Trinitro-toluene (TNT) is

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

Le-Blanc process is a primitive process for the manufacture of

Also checkout

Pick out the wrong statement.

Correct Answer :

Show all Chemical Process MCQ

Related Questions

In multistage equilibrium conversion of SO2 to SO3 (2SO2 + O2 2SO3), the reverse reaction becomes appreciable at a temperature of 550° C. The percentage equilibrium conversion of SO2 to SO3 can be increased by

Raw materials for 'Solvay Process' for manufacture of the soda ash are

Celluloid is chemically

Linde process of gas liquefaction employs

Oxygen is separated by distillation from air after its liquefaction. The boiling point of oxygen is about __________ °C.

Finely ground calcium aluminate & silicate is a/an

Production of one ton of dry paper pulp requires about __________ tons of bamboo or wood.

Heating of __________ to 120°C, produces plaster of paris.

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

Permanent hardness of water can be removed by

Lindane is

Absorption of SO3 in 97% H2SO4 is

Vegetable oils and fats basically differ in their

Bakelite is

Permanent hardness of water can be removed by

At a given temperature, the equilibrium yield of SO3 obtained from the oxidation of SO2 is proportional to (where, P = pressure of the system).

Washing soda is chemically represented by

Paper grade bamboo contains about __________ percent cellulose.

The process used for the manufacture of ethyl alcohol from molasses is

__________ is produced using Polycondensation reaction.

Cooking liquor in case of sulphite process is

Main product in calcium carbide-water reaction is

Phenol is mainly used

Addition of calcium oxide to water produces

Sucrose is a disaccharide consisting of

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

Temperature during hydrogenation of oil should not be more than 200°C, otherwise it will result in

Trinitro-toluene (TNT) is

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

Le-Blanc process is a primitive process for the manufacture of

Also checkout

In multistage equilibrium conversion of SO₂ to SO₃ (2SO₂ + O₂ 2SO₃), the reverse reaction becomes appreciable at a temperature of 550° C. The percentage equilibrium conversion of SO₂ to SO₃ can be increased by