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

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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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Main constituents of natural rubber is

A. Polystyrene

B. Polyisoprene

C. Polybutadiene

D. Polychlorophrene

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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

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

A. AgO

B. Al₂O₃

C. ZnCl₂

D. Fe₂O₃

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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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'Hollander beater' machine used in the paper manufacturing plant does not accomplish the task of

A. Final rolling out of paper

B. Cutting of fibres

C. Hydration of fibres

D. Fibrillation of fibre

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Argon is the third largest constituent of air (followed by N₂ & O₂). Its percentage by volume in air is

A. 0.14

B. 0.34

C. 0.94

D. 1.4

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Riboflavin is a/an

A. Vitamin

B. Analgesic drug

C. Anaesthetics

D. Anti-malarial drug

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Rancidity of the fatty oil can be reduced by its

A. Decoloration

B. Hydrogenation

C. Oxidation

D. Purification

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10% oleum comprises of 10% free

A. SO₂

B. H₂SO₃

C. SO₃

D. H₂SO₄

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Liquor poisoning generally occurs due to the presence of __________ in it.

A. Ethyl alcohol

B. Impurities

C. Methyl alcohol

D. Carbonic acid

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Pick out the wrong statement.

A. DDT is manufactured by the condensation of chlorobenzene with chloral at 30°C in presence of oleum, which is a highly exothermic reaction

B. Chloral is obtained by the chlorination of ethyl alcohol

C. Insecticides acting on the insects through the respiratory system are called fumigants

D. Benzene hexachloride is not a contact insecticide

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Flux addition during smelting of ore is done to

A. Remove impurities/gangue

B. Enhance rate of reaction

C. Accelerate reduction of ore

D. Separate slag from metal

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The combustion reaction, C + O₂ = CO₂, is

A. Exothermic

B. Endothermic

C. Autocatalytic

D. None of these

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Hydrogenation of oil/fat does not

A. Improve its resistance to rancid oxidation

B. Raise its melting point

C. Remove double bonds

D. None of these

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Varnish does not contain

A. Thinner

B. Pigment

C. Both (A) & (B)

D. Neither (A) nor (B)

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Which of the following is used as a coagulant in water treatment?

A. Chloramine

B. Chlorine

C. Ferrous sulphate

D. Hydrogen peroxide

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Boiling of water containing temporary hardness produces

A. CO₂

B. CaSO₄

C. CaHCO₃

D. None of these

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Pick out the wrong statement.

A. Kraft method of pulp manufacture can process all types of fibrous raw materials

B. Digestion time for bagasse is less than that for wood base materials

C. Both temperature and pressure in the digestor is less in case of the sulphite method as compared to that in the sulphate method

D. None of these

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Bromine is used in the preparation of

A. Fire extinguishing compounds

B. Fire proofing agents

C. Dyes and antiknock compounds

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

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Pick out the wrong statement.

A. Catalytic hydrogenation of carbon monoxide produces methyl alcohol

B. In nylon-6, the number 6 represents the total number of carbon atoms in the ring

C. Raw materials for DDT manufacture are benzene and chlorine

D. Ethanolamines are produced by using ammonia and ethylene oxide as raw material

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Phenolic antiseptics are added in the __________ soap.

A. Shaving

B. Medicated

C. Metallic

D. Transparent

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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

Discuss this answer

Ceramics are produced from silicates or clayish materials: Which of the following is not a ceramic material?

A. Slag cement

B. Glasses

C. Porcelain/Potteries

D. Teflon

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Hydrocyanic acid (HCN) is used as an insecticide for

A. Controlling timber degradation by ants

B. Controlling poultry lice

C. Potato beetle

D. Citrus fruits

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Margarine is a/an

A. Fat

B. Explosive

C. Plasticiser

D. Rocket propellant

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Oil produced by solvent extraction

A. Has low free fatty acid content

B. Is odourless

C. Both (A) & (B)

D. Neither (A) nor (B)

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Extraction of __________ employs an electrolytic process.

A. Aluminium

B. Silver

C. Copper

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

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The terminology 'BTX' used in coal tar distillation industry refers to

A. Benzol-toluol-xylol

B. Benzol-toluene-xylene

C. Benzene-toluol-xylol

D. Benzene-toluene-xylene

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Ore concentration by froth floatation utilises the __________ of ore particles.

A. Density difference

B. Wetting characteristics

C. Terminal velocities

D. None of these

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Which of the following is a bleaching agent added in the detergents to facilitate removal of stains caused due to blood, tea etc?

A. Sodium silicate

B. Sodium borate

C. Sodium tripolyphosphate (STPP)

D. Caustic soda

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Accepted Answer

B. Borosilicate

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

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Main constituents of natural rubber is

Enzymes are

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

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

'Hollander beater' machine used in the paper manufacturing plant does not accomplish the task of

Argon is the third largest constituent of air (followed by N₂ & O₂). Its percentage by volume in air is

Riboflavin is a/an

Rancidity of the fatty oil can be reduced by its

10% oleum comprises of 10% free

Liquor poisoning generally occurs due to the presence of __________ in it.

Pick out the wrong statement.

Flux addition during smelting of ore is done to

The combustion reaction, C + O₂ = CO₂, is

Hydrogenation of oil/fat does not

Varnish does not contain

Which of the following is used as a coagulant in water treatment?

Boiling of water containing temporary hardness produces

Pick out the wrong statement.

Bromine is used in the preparation of

Pick out the wrong statement.

Phenolic antiseptics are added in the __________ soap.

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

Ceramics are produced from silicates or clayish materials: Which of the following is not a ceramic material?

Hydrocyanic acid (HCN) is used as an insecticide for

Margarine is a/an

Oil produced by solvent extraction

Extraction of __________ employs an electrolytic process.

The terminology 'BTX' used in coal tar distillation industry refers to

Ore concentration by froth floatation utilises the __________ of ore particles.

Which of the following is a bleaching agent added in the detergents to facilitate removal of stains caused due to blood, tea etc?

Also checkout

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

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Main constituents of natural rubber is

Enzymes are

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

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

'Hollander beater' machine used in the paper manufacturing plant does not accomplish the task of

Argon is the third largest constituent of air (followed by N2 & O2). Its percentage by volume in air is

Riboflavin is a/an

Rancidity of the fatty oil can be reduced by its

10% oleum comprises of 10% free

Liquor poisoning generally occurs due to the presence of __________ in it.

Pick out the wrong statement.

Flux addition during smelting of ore is done to

The combustion reaction, C + O2 = CO2, is

Hydrogenation of oil/fat does not

Varnish does not contain

Which of the following is used as a coagulant in water treatment?

Boiling of water containing temporary hardness produces

Pick out the wrong statement.

Bromine is used in the preparation of

Pick out the wrong statement.

Phenolic antiseptics are added in the __________ soap.

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

Ceramics are produced from silicates or clayish materials: Which of the following is not a ceramic material?

Hydrocyanic acid (HCN) is used as an insecticide for

Margarine is a/an

Oil produced by solvent extraction

Extraction of __________ employs an electrolytic process.

The terminology 'BTX' used in coal tar distillation industry refers to

Ore concentration by froth floatation utilises the __________ of ore particles.

Which of the following is a bleaching agent added in the detergents to facilitate removal of stains caused due to blood, tea etc?

Also checkout

Argon is the third largest constituent of air (followed by N₂ & O₂). Its percentage by volume in air is

The combustion reaction, C + O₂ = CO₂, is