Pick out the wrong statement.

Question

Pick out the wrong statement.

A. Strongly caking coal should not be used in the Lurgi gasifier

B. Acetylene gas cannot be used for illumination purpose

C. Water gas is called blue gas because of the color of the flame, when it is burnt

D. Gaseous fuels require less percentage of excess air for combustion as compared to liquid fuels

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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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Zeolite is used in the

A. Water treatment

B. Glass manufacture

C. Hydrogenation of fatty oil as a catalyst

D. Development of exposed photographic plate

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Plaster of Paris is

A. CaSO₄. ½H₂O

B. Used for setting of broken bones

C. Both (A) and (B)

D. Same as gypsum

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High magnesia lime is added to hot sugar cane juice (during the manufacture of sugar) to

A. Flocculate the impurities

B. Facilitate fast filtration

C. Both (A) and (B)

D. Neither (A) nor (B)

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Raw materials required for the manufacture of __________ is acetylene and hydrochloric acid.

A. Phthalic anhydride

B. Vinyl chloride

C. Maleic anhydride

D. Dacron

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In primitive days, __________ was being manufactured by Leblanc Process.

A. Alum

B. Washing soda

C. Soda ash

D. Calcium carbide

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The purpose of adding Na₂CO₃ to water of low alkalinity is to

A. Permit the use of alum as a coagulant

B. Increase the softening capacity of zeolite

C. Facilitate easy regeneration of zeolite

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

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Vegetable oils and fats basically differ in their

A. Density ranges

B. Physical state

C. Chemical composition

D. Chemical properties

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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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Hydrogenation of vegetable oils is a/an __________ reaction.

A. Endothermic

B. Autocatalytic

C. Exothermic

D. Homogenous

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Which of the following sugars is the sweetest?

A. Glucose

B. Fructose

C. Sucrose

D. Lactose

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Catalytic oxidation-dehydrogenation of methyl alcohol produces

A. Formaldehyde

B. Phenol

C. Acetone

D. Maleic anhydride

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Graphite is a/an

A. Electrical insulator

B. Allotrope of carbon

C. Moderator used in nuclear reactor

D. Both (B) and (C)

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Gun powder uses

A. Sulphur

B. Charcoal

C. Potassium nitrate

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

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Litharge is

A. Lead oxide

B. Zinc oxide

C. Zinc sulphide

D. Cellulosic photographic material

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The main aim behind cooling the digested chip at the bottom portion of the digestor by injecting cold black liquor is to

A. Avoid mechanical weakening of fibre

B. Remove lignin by way of crystallisation

C. Increase the cellulose content

D. None of these

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Acrylonitrile is mainly used in the __________ industry.

A. Polymer

B. Printing

C. Dyeing

D. Photographic

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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

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Chloramines are used in water treatment for

A. Disinfection and control of taste & odour

B. Corrosion control

C. Removing turbidity

D. Control of bacteria

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Transparent soaps (e.g. Pears) are

A. Usually soft soap (made from coconut oil) in which cane sugar & alcohol are added and finally washed with methylated spirit to achieve transparency

B. Metallic soaps with frothing agent and free Stearic acid to achieve transparency

C. Metallic soaps with frothing agent from which glycerine has not been recovered

D. None of these

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__________ is not a constituent of gun powder.

A. Carbon

B. Charcoal

C. Sulphur

D. Potassium nitrate

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Dacron is a/an

A. Polyester

B. Unsaturated polyester

C. Polyamide

D. Inorganic polymer

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CO & H₂ are the constituents of

A. Producer gas

B. Water gas

C. Coke oven gas

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

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

A. Bromine

B. Magnesium compounds

C. Potassium compounds

D. Sodium sulphate

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Setting of plaster of Paris is accompanied with

A. Hydration

B. Dehydration

C. Hydrolysis

D. Loss of CO₂

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Thermoplastic materials

A. Do not soften on application of heat

B. Are heavily branched molecules

C. Are solvent insoluble

D. None of these

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__________ process is used for the manufacture of sodium carbonate by ammonia soda process.

A. Ostwald's

B. Bosch

C. Solvay

D. Haber's

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Glycerine is recovered from lye by

A. Evaporation followed by vacuum distillation

B. Liquid extraction technique

C. Extractive distillation technique

D. None of these

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Saponification number of an oil or fat

A. Gives an idea about its molecular weight

B. Is inversely proportional to its molecular weight

C. Detects its adulteration

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

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Accepted Answer

B. Acetylene gas cannot be used for illumination purpose

Pick out the wrong statement.

Correct Answer :

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Related Questions

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

Zeolite is used in the

Plaster of Paris is

High magnesia lime is added to hot sugar cane juice (during the manufacture of sugar) to

Raw materials required for the manufacture of __________ is acetylene and hydrochloric acid.

In primitive days, __________ was being manufactured by Leblanc Process.

The purpose of adding Na₂CO₃ to water of low alkalinity is to

Vegetable oils and fats basically differ in their

Cement mainly contains

Hydrogenation of vegetable oils is a/an __________ reaction.

Which of the following sugars is the sweetest?

Catalytic oxidation-dehydrogenation of methyl alcohol produces

Graphite is a/an

Gun powder uses

Litharge is

The main aim behind cooling the digested chip at the bottom portion of the digestor by injecting cold black liquor is to

Acrylonitrile is mainly used in the __________ industry.

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

Chloramines are used in water treatment for

Transparent soaps (e.g. Pears) are

__________ is not a constituent of gun powder.

Dacron is a/an

CO & H₂ are the constituents of

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

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

Setting of plaster of Paris is accompanied with

Thermoplastic materials

__________ process is used for the manufacture of sodium carbonate by ammonia soda process.

Glycerine is recovered from lye by

Saponification number of an oil or fat

Also checkout

Pick out the wrong statement.

Correct Answer :

Show all Chemical Process MCQ

Related Questions

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

Zeolite is used in the

Plaster of Paris is

High magnesia lime is added to hot sugar cane juice (during the manufacture of sugar) to

Raw materials required for the manufacture of __________ is acetylene and hydrochloric acid.

In primitive days, __________ was being manufactured by Leblanc Process.

The purpose of adding Na2CO3 to water of low alkalinity is to

Vegetable oils and fats basically differ in their

Cement mainly contains

Hydrogenation of vegetable oils is a/an __________ reaction.

Which of the following sugars is the sweetest?

Catalytic oxidation-dehydrogenation of methyl alcohol produces

Graphite is a/an

Gun powder uses

Litharge is

The main aim behind cooling the digested chip at the bottom portion of the digestor by injecting cold black liquor is to

Acrylonitrile is mainly used in the __________ industry.

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

Chloramines are used in water treatment for

Transparent soaps (e.g. Pears) are

__________ is not a constituent of gun powder.

Dacron is a/an

CO & H2 are the constituents of

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

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

Setting of plaster of Paris is accompanied with

Thermoplastic materials

__________ process is used for the manufacture of sodium carbonate by ammonia soda process.

Glycerine is recovered from lye by

Saponification number of an oil or fat

Also checkout

The purpose of adding Na₂CO₃ to water of low alkalinity is to

CO & H₂ are the constituents of