Which allotrope of sulphur is insoluble in carbon disulphide?

Question

Which allotrope of sulphur is insoluble in carbon disulphide?

A. Rhombic sulphur

B. Monoclinic sulphur

C. Plastic sulphur

D. Milk of sulphur

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Chemical name of Grignard reagent is

A. Sodium thiosulphate

B. Ethyl magnesium chloride

C. Sodium sulphite

D. Sodium bicarbonate

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A bio-catalyst produced by living cells which acts independent of the cell is called a/an

A. Substrate

B. Enzyme

C. Nutrient

D. None of these

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Transportation of 35% oleum during winter suffers from the problem of freezing, which can be overcome by the addition of small quantity of

A. Nitric acid

B. Hydrochloric acid

C. Methyl alcohol

D. Formic acid

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

A. 1

B. 2.5

C. 5

D. 10

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Parathion and Malathion are

A. Pesticides

B. Plasticisers for unsaturated polyesters

C. Pain-relieving drugs (analgesic)

D. Tranquilisers

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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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Favourable conditions for the liquefaction of gases in general are

A. High pressure & low temperature

B. Low pressure & high temperature

C. High pressure & high temperature

D. Low pressure & low temperature

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The basic difference between vegetable oils and fats is in their

A. Density

B. Chemical properties

C. Physical state

D. Composition

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Unsaturated oils compared to saturated oils have

A. Lower melting point & higher reactivity to oxygen

B. Higher melting point & higher reactivity to oxygen

C. Lower melting point & lower reactivity to oxygen

D. Higher melting point & lower reactivity to oxygen

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The manufacture of Kraft pulp is done by a/an __________ process.

A. Alkaline

B. Acidic

C. Neutral

D. None of these

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Sucrose content in cane sugar may be around __________ percent.

A. 50

B. 70

C. 95

D. 80

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Commercial scale production of hydrogen from iron-steam reaction represented by, 3Fe + 3H₂O = Fe₃O₄ + 4H₂, is not practised, as it is

A. A slow reaction

B. A discontinuous reaction (requiring regeneration of iron by water gas intermittently)

C. Still in development stage (by employing fluidised bed technique)

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

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Pick out the wrong statement pertaining to nitric acid.

A. About 90% of nitric acid is manufactured by Ostwald's process

B. It is a strong mono basic acid which reacts with almost all the metals except noble metals

C. Yellow color of impure nitric acid is because of dissolved oxides of nitrogen (mainly NO2)

D. Arc process of nitric acid manufacture is economical as compared to Ostwald's process

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Pick out the wrong statement.

A. Dry process is used for the manufacture of cement, when the raw material is blast furnace slag

B. Portland cement is made employing wet process

C. Gypsum is added to Portland cement to lengthen its setting time

D. None of these

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Esterification reaction produces

A. Detergent

B. Vanaspati

C. Soap

D. Mercaptans

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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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The major constituent of black liquor generated during paper manufacture is sodium

A. Sulphate

B. Carbonate

C. Hydroxide

D. Bi-carbonate

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Which of the following is not produced commercially from sea water?

A. Magnesium & potassium compounds

B. Common salt

C. Bromine

D. Iodine

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Which is a high grade pulp?

A. Rag pulp

B. Mechanical pulp

C. Sulphate pulp

D. Sulphite pulp

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Nitrile rubber is produced by the polymerisation of

A. Acrylonitrile and butadiene

B. Acrylonitrile and styrene

C. Isobutylene and isoprene

D. None of these

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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 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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Oils are partially hydrogenated (not fully) to manufacture Vanaspati, because fully saturated solidified oils

A. Cause cholesterol build up and blood clotting

B. Are prone to rancid oxidation

C. Always contain some amount of nickel (as their complete removal is very difficult)

D. Have affinity to retain harmful sulphur compounds

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Which of the following processes is absent in glass manufacturing process?

A. Sintering

B. Annealing

C. Shaping or forming

D. Melting

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Which of the following may be viewed as a catalyst in the manufacture of soda ash by Solvay process?

A. NH3

B. NaCl

C. CaO

D. Coke

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Wax is a

A. Mixture of glycerides

B. Mixture of esters of polyhydric alcohols excepting glycerine

C. Liquid at room temperature

D. Mixture of glycerides of fatty acids

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Vulcanisation of rubber

A. Decreases its tensile strength

B. Increases its ozone & oxygen reactivity

C. Increases its oil & solvent resistance

D. Converts its plasticity into elasticity

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Which of the following additives/water proofing agents is added to lower the hydrophilic (moisture loving) characteristic of cement?

A. Xanthates

B. Stearic acid

C. Calcium & aluminium stearate

D. Formic acid

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Coal tar is used as a

A. Binding material for coal briquettes

B. Fuel in rotary kiln

C. Binder in making carbon electrodes

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

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Enzymes are

A. Proteins with high molecular weight (around 10,000)

B. Derived from living organisms

C. Catalyst for temperature sensitive reactions

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

Discuss this answer

Accepted Answer

C. Plastic sulphur

Which allotrope of sulphur is insoluble in carbon disulphide?

Correct Answer :

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Related Questions

Chemical name of Grignard reagent is

A bio-catalyst produced by living cells which acts independent of the cell is called a/an

Transportation of 35% oleum during winter suffers from the problem of freezing, which can be overcome by the addition of small quantity of

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

Parathion and Malathion are

Vegetable oils and fats basically differ in their

Favourable conditions for the liquefaction of gases in general are

The basic difference between vegetable oils and fats is in their

Unsaturated oils compared to saturated oils have

The manufacture of Kraft pulp is done by a/an __________ process.

Sucrose content in cane sugar may be around __________ percent.

Commercial scale production of hydrogen from iron-steam reaction represented by, 3Fe + 3H₂O = Fe₃O₄ + 4H₂, is not practised, as it is

Pick out the wrong statement pertaining to nitric acid.

Pick out the wrong statement.

Esterification reaction produces

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

The major constituent of black liquor generated during paper manufacture is sodium

Which of the following is not produced commercially from sea water?

Which is a high grade pulp?

Nitrile rubber is produced by the polymerisation of

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

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

Oils are partially hydrogenated (not fully) to manufacture Vanaspati, because fully saturated solidified oils

Which of the following processes is absent in glass manufacturing process?

Which of the following may be viewed as a catalyst in the manufacture of soda ash by Solvay process?

Wax is a

Vulcanisation of rubber

Which of the following additives/water proofing agents is added to lower the hydrophilic (moisture loving) characteristic of cement?

Coal tar is used as a

Enzymes are

Also checkout

Which allotrope of sulphur is insoluble in carbon disulphide?

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Chemical name of Grignard reagent is

A bio-catalyst produced by living cells which acts independent of the cell is called a/an

Transportation of 35% oleum during winter suffers from the problem of freezing, which can be overcome by the addition of small quantity of

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

Parathion and Malathion are

Vegetable oils and fats basically differ in their

Favourable conditions for the liquefaction of gases in general are

The basic difference between vegetable oils and fats is in their

Unsaturated oils compared to saturated oils have

The manufacture of Kraft pulp is done by a/an __________ process.

Sucrose content in cane sugar may be around __________ percent.

Commercial scale production of hydrogen from iron-steam reaction represented by, 3Fe + 3H2O = Fe3O4 + 4H2, is not practised, as it is

Pick out the wrong statement pertaining to nitric acid.

Pick out the wrong statement.

Esterification reaction produces

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

The major constituent of black liquor generated during paper manufacture is sodium

Which of the following is not produced commercially from sea water?

Which is a high grade pulp?

Nitrile rubber is produced by the polymerisation of

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

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

Oils are partially hydrogenated (not fully) to manufacture Vanaspati, because fully saturated solidified oils

Which of the following processes is absent in glass manufacturing process?

Which of the following may be viewed as a catalyst in the manufacture of soda ash by Solvay process?

Wax is a

Vulcanisation of rubber

Which of the following additives/water proofing agents is added to lower the hydrophilic (moisture loving) characteristic of cement?

Coal tar is used as a

Enzymes are

Also checkout

Commercial scale production of hydrogen from iron-steam reaction represented by, 3Fe + 3H₂O = Fe₃O₄ + 4H₂, is not practised, as it is

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