Refractory bricks burnt at very high temperature have got

Question

Refractory bricks burnt at very high temperature have got

A. Greater resistance to corrosion by slags

B. Less resistance to corrosion by slags

C. High spalling tendency

D. None of these

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Most widely and commonly used coagulant for the removal of suspended impurities in water is

A. Bleaching powder

B. Slaked lime

C. Alum

D. Copper sulphate

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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 oil is preferred for paint manufacture?

A. Drying oil

B. Non-drying oil

C. Semi-drying oil

D. Saturated oil

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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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Hydrolysis of sugar is called

A. Hydration

B. Inversion

C. Esterification

D. None of these

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Pick out the wrong statement.

A. Wine, rum & Vodka are prepared by the formulation of fruit juice, sugar beet & rye respectively

B. Protein catalysts are called enzymes

C. The rate of chemical reaction is independent of the concentration of reactants at high concentration of enzymes

D. Total sugar content in molasses is about 10%

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Polycaprolactam is commercially known as

A. Nylon-6

B. Nylon-66

C. Dacron

D. Rayon

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Deaeration of water in its treatment is necessary, as it

A. Minimises its turbidity

B. Helps in controlling its taste and odour

C. Minimises its corrosiveness

D. None of these

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Which of the following is not an insecticide?

A. Hydrocyanic acid

B. Nicotine

C. Sodium fluoride

D. Hexane

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Polymethyl methacrylate (PMMA) is known as

A. Bakelite

B. Teflon

C. Perspex

D. Nylon-6

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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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Air used in aerobic fermentation must be sterilized, otherwise the

A. Recovery of product will be difficult

B. Contamination of pure culture would result

C. Uniformity of product cannot be achieved

D. None of these

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In the manufacture of H₂SO₄, vanadium catalyst as compared to platinum catalyst

A. Gives higher conversion efficiency

B. Has a longer life and is not poisoned by arsenic

C. Handles lower SO2 content gas (7 -10% SO₂), thus increasing the capital cost of the plant

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

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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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Phthalic anhydride is made by the

A. Oxidation of naphthalene

B. Oxidation of benzene

C. Dehydrogenation of ethyl benzene

D. None of these

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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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Fusion of limestone and __________ produces high alumina cement.

A. Sand

B. Bauxite

C. Quicklime

D. Calcite

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Phosphate rock is a raw material for the manufacture of

A. Phosphoric acid

B. Phosphorous

C. Superphosphates

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

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P.T.F.E. (Poly tetra fluoro ethylene) is commercially known as

A. Bakelite

B. Neoprene

C. Teflon

D. Nylon-66

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Pick out the wrong statement.

A. Azoic dyes are mostly applied on cotton fabrics

B. Basic dyes (e.g. amino derivatives) are applied mostly to paper

C. Mordant dyes are applied mainly to wools

D. None of these

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Direct conversion of chemical energy into electrical energy is done in a

A. Magnetohydrodynamic (MHD) generator

B. Fuel cell

C. Fast breeder reactor

D. None of these

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Massecuite is

A. Used for paper making

B. Used as a cattle feed

C. Highly acidic in nature

D. None of these

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__________ is used as a flux in the smelting of copper ore like chalcopyrite.

A. Coke breeze

B. Lime powder

C. Silica/quartz

D. Dolomite

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Nitrogen is an essential component of

A. Mineral salts

B. Carbohydrates

C. Fats

D. Proteins

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Phthalic anhydride is produced by the oxidation of

A. Naphthalene

B. Benzene

C. Toluene

D. Aniline

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Sulphuric acid completely saturated with sulphur trioxide is called

A. Concentrated sulphuric acid

B. Oleum

C. Sulphurous acid

D. Dilute sulphuric acid

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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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Presence of carbonaceous matter in the sewage

A. Causes reduction in its dissolved oxygen content thereby endangering the life of aquatic creatures

B. Reduces sulphate ions to sulphides causing obnoxious smell

C. Increases the quantity of chlorine used for its purification

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

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Stereospecific agents are exemplified by

A. Radiation

B. Supported metal oxide catalysts

C. Ziegler catalysts

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

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Main product in calcium carbide-water reaction is

A. Ca(OH)₂

B. C₂H₂

C. CO₂

D. CaCO₃

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Accepted Answer

A. Greater resistance to corrosion by slags

Refractory bricks burnt at very high temperature have got

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Most widely and commonly used coagulant for the removal of suspended impurities in water is

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

Which oil is preferred for paint manufacture?

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

Hydrolysis of sugar is called

Pick out the wrong statement.

Polycaprolactam is commercially known as

Deaeration of water in its treatment is necessary, as it

Which of the following is not an insecticide?

Polymethyl methacrylate (PMMA) is known as

Enamels

Air used in aerobic fermentation must be sterilized, otherwise the

In the manufacture of H₂SO₄, vanadium catalyst as compared to platinum catalyst

Boiling of water containing temporary hardness produces

Phthalic anhydride is made by the

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

Fusion of limestone and __________ produces high alumina cement.

Phosphate rock is a raw material for the manufacture of

P.T.F.E. (Poly tetra fluoro ethylene) is commercially known as

Pick out the wrong statement.

Direct conversion of chemical energy into electrical energy is done in a

Massecuite is

__________ is used as a flux in the smelting of copper ore like chalcopyrite.

Nitrogen is an essential component of

Phthalic anhydride is produced by the oxidation of

Sulphuric acid completely saturated with sulphur trioxide is called

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

Presence of carbonaceous matter in the sewage

Stereospecific agents are exemplified by

Main product in calcium carbide-water reaction is

Also checkout

Refractory bricks burnt at very high temperature have got

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Most widely and commonly used coagulant for the removal of suspended impurities in water is

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

Which oil is preferred for paint manufacture?

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

Hydrolysis of sugar is called

Pick out the wrong statement.

Polycaprolactam is commercially known as

Deaeration of water in its treatment is necessary, as it

Which of the following is not an insecticide?

Polymethyl methacrylate (PMMA) is known as

Enamels

Air used in aerobic fermentation must be sterilized, otherwise the

In the manufacture of H2SO4, vanadium catalyst as compared to platinum catalyst

Boiling of water containing temporary hardness produces

Phthalic anhydride is made by the

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

Fusion of limestone and __________ produces high alumina cement.

Phosphate rock is a raw material for the manufacture of

P.T.F.E. (Poly tetra fluoro ethylene) is commercially known as

Pick out the wrong statement.

Direct conversion of chemical energy into electrical energy is done in a

Massecuite is

__________ is used as a flux in the smelting of copper ore like chalcopyrite.

Nitrogen is an essential component of

Phthalic anhydride is produced by the oxidation of

Sulphuric acid completely saturated with sulphur trioxide is called

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

Presence of carbonaceous matter in the sewage

Stereospecific agents are exemplified by

Main product in calcium carbide-water reaction is

Also checkout

In the manufacture of H₂SO₄, vanadium catalyst as compared to platinum catalyst