Pick out the wrong statement.

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Pick out the wrong statement.

A. Hard glass which is used for making laboratory glass wares is a mixture of sodium borosilicate and aluminium borosilicate

B. Glass is decolorized during its manufacture by adding antimony oxide, manganese dioxide or arsenic oxide

C. Ordinary glass is represented chemically by Na₂O . CaO . 6SiO₂

D. Red color is imparted to glass by addition of arsenic oxide

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Epoxy resin

A. Is a good adhesive

B. Is an elastomer

C. Cannot be used for surface coatings

D. Is a polyester

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Which of the following is not present in bagasse fibre?

A. Cellulose

B. Lignin

C. Pentogens

D. None of these

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Bleaching of paper pulp is done with

A. Activated clay

B. Bromine

C. Chlorine or chlorine dioxide

D. Magnesium sulphite

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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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In contact process, SO₃ is absorbed in 97% H₂SO₄ and not in water, because

A. SO₃ gas is sparingly soluble in water

B. Water forms an acid mist, which is difficult to absorb

C. The purity of acid is affected

D. Scale formation in the absorber is to be avoided

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Major component of flint glass is

A. Lead oxide

B. Silica

C. Alumina

D. Soda

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Thermal pyrolysis of ethylene dichloride produces

A. Trichloroethylene

B. Vinyl chloride

C. Ethanol amine

D. Ethylene oxide

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The main use of activated carbon in water treatment is to control

A. Bacterial growth

B. Taste and odour

C. Turbidity

D. None of these

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Low purity oxygen is used for

A. L.D. steel making

B. Cutting and welding of metals

C. Medicinal purposes

D. Chemical oxidation processes

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The purpose of tanning in leather industry is to

A. Stiffen the leather

B. Smoothen the leather

C. Make it flexible

D. Impart water resistance

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Main constituents of natural rubber is

A. Polystyrene

B. Polyisoprene

C. Polybutadiene

D. Polychlorophrene

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Cellulose percentage in bamboo fibre is about

A. 10

B. 20

C. 50

D. 85

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Sulphuric acid solution having a specific gravity of 1.20 at room temperature is used mainly for the

A. Fertiliser manufacture

B. Car battery solution

C. Synthesis of oleum

D. Water treatment

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Cation exchanger is regenerated usually with

A. NaOH

B. H₂SO₄

C. Hydrazine

D. Alum solution

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Which of the following is used as a binding material in soap to improve soap texture?

A. Rosin

B. Borax

C. Benzyl acetate

D. Sodium carbonate

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Sodium carbonate (soda ash) is not used in the manufacture of

A. Fire extinguishers

B. Sugar

C. Baking powder

D. Detergents

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Pick out the true statement pertaining to water treatment.

A. Slow sand filters can remove colour completely

B. Activated carbon can be used for taste & odour control without subsequent filtration

C. Application of activated carbon reduces the temporary hardness of water

D. Normally, the turbidity is removed by adding a coagulant prior to sedimentation

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Synthetic glycerine is produced from

A. Toluene

B. Phenol

C. Propylene

D. Naphthalene

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Which of the following is an organometallic compound?

A. Isopropyl alcohol

B. Tetra-ethyl lead

C. Zeolite

D. Cumene

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CaSO4 . ½H₂O is known as

A. Blue vitriol

B. Plaster of Paris

C. Gypsum

D. Zeolite

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Catalytic oxidation-dehydrogenation of methyl alcohol produces

A. Formaldehyde

B. Phenol

C. Acetone

D. Maleic anhydride

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Widely used method for the conditioning of boiler feed water is the

A. Cold lime process

B. Coagulation

C. Hot-lime soda process

D. Sequestration

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Pick out the exothermic reaction out of the following:

A. C + H₂O = CO + H₂

B. CaC₂ + H₂O = Ca(OH)₂ + C₂H₂

C. MgCO₃ = MgO + CO₂

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

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Catalytic oxidation of toluene produces

A. Styrene

B. Phenol

C. Benzene

D. Tri-nitro-toluene

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Function of sodium thiosulphate (hypo) in development of photographic film/plate is to

A. Brighten the faint images

B. Remove metallic silver

C. Convert silver chloride to silver

D. Remove unexposed silver halide

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Riboflavin is a/an

A. Vitamin

B. Analgesic drug

C. Anaesthetics

D. Anti-malarial drug

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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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Pick out the wrong statement.

A. Hard glass which is used for making laboratory glass wares is a mixture of sodium borosilicate and aluminium borosilicate

B. Glass is decolorized during its manufacture by adding antimony oxide, manganese dioxide or arsenic oxide

C. Ordinary glass is represented chemically by Na₂O . CaO . 6SiO₂

D. Red color is imparted to glass by addition of arsenic oxide

Discuss this answer

Enamels

A. Give good glossy finish

B. Are same as varnish

C. Are prepared from non-drying oil

D. Do not contain pigment

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Catalyst used in the manufacture of sulphuric acid by chamber & contact processes are respectively

A. V₂O₅ & Cr₂O₃.

B. Oxides of nitrogen & Cr₂O₃

C. V₂O₅ on a porous carrier & oxides of nitrogen

D. Oxides of nitrogen & V₂O₅ on a porous carrier

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Accepted Answer

D. Red color is imparted to glass by addition of arsenic oxide

Pick out the wrong statement.

Correct Answer :

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Related Questions

Epoxy resin

Which of the following is not present in bagasse fibre?

Bleaching of paper pulp is done with

Oil produced by solvent extraction

In contact process, SO₃ is absorbed in 97% H₂SO₄ and not in water, because

Major component of flint glass is

Thermal pyrolysis of ethylene dichloride produces

The main use of activated carbon in water treatment is to control

Low purity oxygen is used for

The purpose of tanning in leather industry is to

Main constituents of natural rubber is

Cellulose percentage in bamboo fibre is about

Sulphuric acid solution having a specific gravity of 1.20 at room temperature is used mainly for the

Cation exchanger is regenerated usually with

Which of the following is used as a binding material in soap to improve soap texture?

Sodium carbonate (soda ash) is not used in the manufacture of

Pick out the true statement pertaining to water treatment.

Synthetic glycerine is produced from

Which of the following is an organometallic compound?

CaSO4 . ½H₂O is known as

Catalytic oxidation-dehydrogenation of methyl alcohol produces

Widely used method for the conditioning of boiler feed water is the

Pick out the exothermic reaction out of the following:

Catalytic oxidation of toluene produces

Function of sodium thiosulphate (hypo) in development of photographic film/plate is to

Riboflavin is a/an

Oxygen is produced by fractionation of air using __________ process.

Pick out the wrong statement.

Enamels

Catalyst used in the manufacture of sulphuric acid by chamber & contact processes are respectively

Also checkout

Pick out the wrong statement.

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Epoxy resin

Which of the following is not present in bagasse fibre?

Bleaching of paper pulp is done with

Oil produced by solvent extraction

In contact process, SO3 is absorbed in 97% H2SO4 and not in water, because

Major component of flint glass is

Thermal pyrolysis of ethylene dichloride produces

The main use of activated carbon in water treatment is to control

Low purity oxygen is used for

The purpose of tanning in leather industry is to

Main constituents of natural rubber is

Cellulose percentage in bamboo fibre is about

Sulphuric acid solution having a specific gravity of 1.20 at room temperature is used mainly for the

Cation exchanger is regenerated usually with

Which of the following is used as a binding material in soap to improve soap texture?

Sodium carbonate (soda ash) is not used in the manufacture of

Pick out the true statement pertaining to water treatment.

Synthetic glycerine is produced from

Which of the following is an organometallic compound?

CaSO4 . ½H2O is known as

Catalytic oxidation-dehydrogenation of methyl alcohol produces

Widely used method for the conditioning of boiler feed water is the

Pick out the exothermic reaction out of the following:

Catalytic oxidation of toluene produces

Function of sodium thiosulphate (hypo) in development of photographic film/plate is to

Riboflavin is a/an

Oxygen is produced by fractionation of air using __________ process.

Pick out the wrong statement.

Enamels

Catalyst used in the manufacture of sulphuric acid by chamber & contact processes are respectively

Also checkout

In contact process, SO₃ is absorbed in 97% H₂SO₄ and not in water, because

CaSO4 . ½H₂O is known as