Oxidation of SO₂ to SO₃ is favoured by

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Oxidation of SO₂ to SO₃ is favoured by

A. Low temperature and low pressure

B. Low temperature and high pressure

C. High temperature and low pressure

D. High temperature and high pressure

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Hydrazine (N₂H₄) is used mainly as a/an

A. Explosive

B. Rocket fuel

C. Detergents additive

D. None of these

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The most commonly used substance to speed up the sedimentation of sewage is

A. Lime

B. Sulphuric acid

C. Chlorine

D. Sodium bisulphite

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Alcohol content in freshly prepared natural and fortified wine may be respectively around __________ percent.

A. 7-14 and 14-30

B. 7-14 and 40-50

C. 14 - 30 and 40-50

D. 10 - 20 and 40 - 50

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Contact process of sulphuric acid manufacture

A. Yields acid of higher concentration than chamber process

B. Yields acids of lower concentration than chamber process

C. Is obsolete

D. Eliminates absorber

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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 formula of BHC, which is an insecticide is

A. C₆H₆Cl₆

B. C₆Cl₆

C. C₆H₅Cl

D. C₆H₄Cl₂

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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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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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Wet chlorine gas produced during electrolysis of brine is dehydrated by

A. Spraying 66° Be H2SO4 counter current to the flow of the gas

B. Passing it through a bed of diatomaceous earth

C. Passing it through a bed of silica gel

D. None of these

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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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Chloramines are used in water treatment for

A. Disinfection and control of taste & odour

B. Corrosion control

C. Removing turbidity

D. Control of bacteria

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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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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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Catalyst used during the manufacture of 'Vanaspati Ghee' is

A. Zinc

B. Nickel

C. Platinum

D. Copper

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__________ is produced using Polycondensation reaction.

A. Polythene

B. Phenol formaldehyde

C. Poly vinyl chloride

D. None of these

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Most commonly used rubber vulcanising agent is

A. Sulphur

B. Bromine

C. Platinum

D. Alumina

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Carborundum consists mainly of

A. Bauxite

B. Silicon carbide

C. Boron carbide

D. Calcium carbide

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The catalyst used in the production of elemental sulphur from H₂S (by oxidation-reduction) is

A. Alumina

B. Silica gel

C. Platinum

D. Nickel

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During the manufacture of sulphuric acid, the temperature of molten sulphur is not increased beyond 160°C, as

A. It is very corrosive at elevated temperature

B. Its viscosity is not reduced on further heating (hence pressure drop on pumping it, cannot be further reduced)

C. It decomposes on further increasing the temperature

D. None of these

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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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Polymerisation product of C2F4 (carbon tetrafluoride) is called P.T.F.E (poly chloro tetra fluoro ethylene). It is also called

A. Polyurethane

B. Silicone

C. Teflon

D. Epoxy resin

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In Kraft process of paper manufacture, white cooking liquor consists of caustic soda

A. Sodium sulphide & sodium carbonate

B. Sodium sulphite & sodium carbonate

C. Sodium sulphite & sodium sulphide

D. None of these

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Pick out the wrong statement.

A. Cold rubber (SBR) is superior as compared to hot rubber (SBR)

B. Polymerisation temperature can modify the properties of SBR

C. Production of cold SBR employs lower pressure as compared to that of hot SBR

D. None of these

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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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Separation of fresh water from sea water can be done by the __________ operation.

A. Osmosis

B. Reverse osmosis

C. Absorption

D. Adsorption

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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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Conversion of CO to CO2 by steam in presence of a catalyst is called

A. Steam reforming

B. Shift conversion

C. Steam gasification

D. None of these

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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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Fire clay is __________ refractory material.

A. A basic

B. An acidic

C. A neutral

D. Not a

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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

Discuss this answer

Accepted Answer

B. Low temperature and high pressure

Oxidation of SO₂ to SO₃ is favoured by

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Hydrazine (N₂H₄) is used mainly as a/an

The most commonly used substance to speed up the sedimentation of sewage is

Alcohol content in freshly prepared natural and fortified wine may be respectively around __________ percent.

Contact process of sulphuric acid manufacture

Which allotrope of sulphur is insoluble in carbon disulphide?

Chemical formula of BHC, which is an insecticide is

Pick out the wrong statement.

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

Wet chlorine gas produced during electrolysis of brine is dehydrated by

Vegetable oils and fats basically differ in their

Chloramines are used in water treatment for

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

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.

Catalyst used during the manufacture of 'Vanaspati Ghee' is

__________ is produced using Polycondensation reaction.

Most commonly used rubber vulcanising agent is

Carborundum consists mainly of

The catalyst used in the production of elemental sulphur from H₂S (by oxidation-reduction) is

During the manufacture of sulphuric acid, the temperature of molten sulphur is not increased beyond 160°C, as

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

Polymerisation product of C2F4 (carbon tetrafluoride) is called P.T.F.E (poly chloro tetra fluoro ethylene). It is also called

In Kraft process of paper manufacture, white cooking liquor consists of caustic soda

Pick out the wrong statement.

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

Separation of fresh water from sea water can be done by the __________ operation.

Pick out the exothermic reaction out of the following:

Conversion of CO to CO2 by steam in presence of a catalyst is called

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

Fire clay is __________ refractory material.

Deaeration of water in its treatment is necessary, as it

Also checkout

Oxidation of SO2 to SO3 is favoured by

Correct Answer :

Show all Chemical Process MCQ

Related Questions

Hydrazine (N2H4) is used mainly as a/an

The most commonly used substance to speed up the sedimentation of sewage is

Alcohol content in freshly prepared natural and fortified wine may be respectively around __________ percent.

Contact process of sulphuric acid manufacture

Which allotrope of sulphur is insoluble in carbon disulphide?

Chemical formula of BHC, which is an insecticide is

Pick out the wrong statement.

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

Wet chlorine gas produced during electrolysis of brine is dehydrated by

Vegetable oils and fats basically differ in their

Chloramines are used in water treatment for

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

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.

Catalyst used during the manufacture of 'Vanaspati Ghee' is

__________ is produced using Polycondensation reaction.

Most commonly used rubber vulcanising agent is

Carborundum consists mainly of

The catalyst used in the production of elemental sulphur from H2S (by oxidation-reduction) is

During the manufacture of sulphuric acid, the temperature of molten sulphur is not increased beyond 160°C, as

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

Polymerisation product of C2F4 (carbon tetrafluoride) is called P.T.F.E (poly chloro tetra fluoro ethylene). It is also called

In Kraft process of paper manufacture, white cooking liquor consists of caustic soda

Pick out the wrong statement.

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

Separation of fresh water from sea water can be done by the __________ operation.

Pick out the exothermic reaction out of the following:

Conversion of CO to CO2 by steam in presence of a catalyst is called

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

Fire clay is __________ refractory material.

Deaeration of water in its treatment is necessary, as it

Also checkout

Oxidation of SO₂ to SO₃ is favoured by

Hydrazine (N₂H₄) is used mainly as a/an

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

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

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.

The catalyst used in the production of elemental sulphur from H₂S (by oxidation-reduction) is

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