Pick out the wrong statement. Iodine value of an oil or fat is

Question

Pick out the wrong statement. Iodine value of an oil or fat is

A. The number of grams of iodine taken up by 100 gm of oil or fat

B. A measure of its unsaturation

C. Helpful in findings its adulteration & its suitability for making soap

D. Independent of the type of oil, whether it is drying or non-drying

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Laboratory glass wares which reacts with hydrofluoric acid, are made of the __________ glass.

A. Lead

B. Borosilicate

C. Soda lime

D. Alkali silicate

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Use of water having dissolved oxygen in boilers promotes

A. Corrosion

B. Sequestration

C. Scale formation

D. None of these

Discuss this answer

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

Deacon's method is used for the manufacture of

A. Glauber's salt

B. Common salt

C. Chlorine

D. Graphite electrode

Discuss this answer

Claude process of gas liquefaction employs

A. Merely compression of gas beyond its critical pressure

B. Joule-Thomson expansion cooling

C. Heat exchange with colder stream

D. Adiabatic expansion against a piston or in a turbine

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

A. 200-300

B. 700-850

C. 2000-2200

D. 4000-4500

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Sodium bisulphite is used for __________ water.

A. Deaeration

B. Dechlorination

C. Both (A) & (B)

D. Neither (A) nor (B)

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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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Naphthols are derivates of

A. Methyl amine

B. Naphthalene

C. Phenol

D. Xylene

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Magnesium and calcium __________ cause temporary hardness of water.

A. Carbonates

B. Bicarbonates

C. Phosphates

D. Sulphates

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Hydrogenation of edible vegetable oils

A. Is an exothermic reaction

B. Increases their melting point

C. Is done in presence of nickel catalyst

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

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Sea weeds are an important source of

A. Fluorine

B. Chlorine

C. Bromine

D. Iodine

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Main constituents of cotton fiber is

A. Lignin

B. Cellulose

C. Starch

D. Gelatine

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

A. Blue vitriol

B. Gypsum

C. Calcium silicate

D. Calcium sulphate

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A good quality coal should have

A. Low fusion point of ash

B. High ash content

C. High sulphur content

D. None of these

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The compressive strength of cement should not be less than about 110Kg/cm² after three days & not less than 170Kg/cm² after seven days. The fineness of an ordinary cement as determined by turbidimetric method should be about __________ cm²/gm.

A. 800

B. 1600

C. 4000

D. 8500

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Production of one ton of cement requires about __________ tons of limestone.

A. 0.6

B. 1.2

C. 2.2

D. 3.8

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Pick out the wrong statement pertaining to solvent extraction of oil. Rate of extraction

A. Decreases with decrease of thickness of the flakes

B. Increases with the increasing flake size keeping the flake thickness constant

C. Increases considerably with the rise of temperature

D. Decreases as the moisture content of flakes increases

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Oleum produces fumes of

A. SO₂

B. H₂SO₄

C. SO₃

D. SO₂ + H₂SO₄

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Chemical formula of oleum is

A. H₂SO₃

B. H₂SO₄

C. H₂S₂O₇

D. H₂SO₇

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The main use of HCl is in the

A. Drilling of petroleum wells and pickling of steel sheets

B. Manufacture of cationic detergent

C. Treatment of spent fuel of nuclear reactor

D. None of these

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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

In industrial nomenclature, alcohol means

A. Butyl alcohol

B. Propyl alcohol

C. Ethanol

D. Methyl alcohol

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Oxygen is produced by fractionation of air using __________ process.

A. Linde's

B. Claude's

C. Either (A) or (B)

D. None of these

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CaCl(OCl) is the chemical formula of

A. Hypo

B. Bleaching powder

C. Plaster of Paris

D. Aqua regia

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__________ is produced using molasses as the starting raw material.

A. Methyl alcohol

B. Ethyl alcohol

C. Benzol

D. Dimethyl ether

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__________ is used as a catalyst in fat splitting.

A. ZnO

B. Ni

C. V₂O₅

D. FeO

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Concentration of NaOH solution produced by mercury electrolytic cell is about __________ percent.

A. 10

B. 25

C. 50

D. 98

Discuss this answer

Yellow phosphorus is transported under

A. Air

B. Water

C. Nitrogen

D. Helium

Discuss this answer

Calcination of gypsum produces

A. Plaster of Paris

B. Salt cake

C. Nitre cake

D. Lime

Discuss this answer

Accepted Answer

D. Independent of the type of oil, whether it is drying or non-drying

Pick out the wrong statement. Iodine value of an oil or fat is

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Laboratory glass wares which reacts with hydrofluoric acid, are made of the __________ glass.

Use of water having dissolved oxygen in boilers promotes

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

Deacon's method is used for the manufacture of

Claude process of gas liquefaction employs

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

Sodium bisulphite is used for __________ water.

Analgesic drugs are

Naphthols are derivates of

Magnesium and calcium __________ cause temporary hardness of water.

Hydrogenation of edible vegetable oils

Sea weeds are an important source of

Main constituents of cotton fiber is

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

A good quality coal should have

The compressive strength of cement should not be less than about 110Kg/cm² after three days & not less than 170Kg/cm² after seven days. The fineness of an ordinary cement as determined by turbidimetric method should be about __________ cm²/gm.

Production of one ton of cement requires about __________ tons of limestone.

Pick out the wrong statement pertaining to solvent extraction of oil. Rate of extraction

Oleum produces fumes of

Chemical formula of oleum is

The main use of HCl is in the

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

In industrial nomenclature, alcohol means

Oxygen is produced by fractionation of air using __________ process.

CaCl(OCl) is the chemical formula of

__________ is produced using molasses as the starting raw material.

__________ is used as a catalyst in fat splitting.

Concentration of NaOH solution produced by mercury electrolytic cell is about __________ percent.

Yellow phosphorus is transported under

Calcination of gypsum produces

Also checkout

Pick out the wrong statement. Iodine value of an oil or fat is

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Laboratory glass wares which reacts with hydrofluoric acid, are made of the __________ glass.

Use of water having dissolved oxygen in boilers promotes

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

Deacon's method is used for the manufacture of

Claude process of gas liquefaction employs

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

Sodium bisulphite is used for __________ water.

Analgesic drugs are

Naphthols are derivates of

Magnesium and calcium __________ cause temporary hardness of water.

Hydrogenation of edible vegetable oils

Sea weeds are an important source of

Main constituents of cotton fiber is

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

A good quality coal should have

The compressive strength of cement should not be less than about 110Kg/cm2 after three days & not less than 170Kg/cm2 after seven days. The fineness of an ordinary cement as determined by turbidimetric method should be about __________ cm2/gm.

Production of one ton of cement requires about __________ tons of limestone.

Pick out the wrong statement pertaining to solvent extraction of oil. Rate of extraction

Oleum produces fumes of

Chemical formula of oleum is

The main use of HCl is in the

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

In industrial nomenclature, alcohol means

Oxygen is produced by fractionation of air using __________ process.

CaCl(OCl) is the chemical formula of

__________ is produced using molasses as the starting raw material.

__________ is used as a catalyst in fat splitting.

Concentration of NaOH solution produced by mercury electrolytic cell is about __________ percent.

Yellow phosphorus is transported under

Calcination of gypsum produces

Also checkout

The compressive strength of cement should not be less than about 110Kg/cm² after three days & not less than 170Kg/cm² after seven days. The fineness of an ordinary cement as determined by turbidimetric method should be about __________ cm²/gm.