Hydrogenation of edible vegetable oils

Question

Hydrogenation of edible vegetable oils

A. Is an exothermic reaction

B. Increases their melting point

C. Is done in presence of nickel catalyst

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

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Comment

At a given temperature, the equilibrium yield of SO3 obtained from the oxidation of SO2 is proportional to (where, P = pressure of the system).

A. P

B. √P

C. P²

D. 1/P

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Which of the following is the main constituent of the mother liquor produced in salt industry?

A. Quick lime

B. Glauber's salt

C. Salt petre

D. Bromine

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Impurities present in brine is normally removed by treatment with

A. NH₃ and CO₂

B. Lime and soda ash

C. Lime, ammonia and carbon

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

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Cumene (isopropyl benzene) is made by

A. Oxidation of naphthalene

B. Propylene alkylation of benzene

C. Polymerisation of a mixture of benzene & propylene

D. None of these

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Anion exchanger is regenerated usually with

A. NaOH

B. H2SO4

C. Hydrazine

D. Alum solution

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Oleum produces fumes of

A. SO₂

B. H₂SO₄

C. SO₃

D. SO₂ + H₂SO₄

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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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__________ acid is the main constituent of cotton seed oil.

A. Acetic

B. Linoleic

C. Palmitic

D. Oleic

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Lindane is

A. Not a fumigant

B. BHC (Benzene Hexachloride) containing 99% γ-isomer

C. A by-product of BHC manufacture

D. Both (B) and (C)

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Gun powder uses

A. Sulphur

B. Charcoal

C. Potassium nitrate

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

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Coloured glass is obtained by mixing of colored salts. Addition of __________ oxide is done to impart greenish blue color to the glass.

A. Chromium

B. Arsenic

C. Copper

D. Manganese

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Hydrogenation of oil does not

A. Remove double bonds

B. Raise its melting point

C. Improve its resistance to oxidation

D. None of these

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Very dilute solutions are generally used in fermentation reactions for which the optimum temperature range is __________ °C.

A. -5 to 0

B. 5 to 10

C. 30 to 50

D. 75 to 80

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Which of the following is a detergent?

A. Benzene hexachloride

B. Alkyl benzene sulphonate

C. Polytetrafluoroethylene

D. Cellulose nitrate

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Coagulant is used __________ filtration.

A. Before

B. After

C. During

D. To avoid

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Mercury electrolytic cells are preferred over diaphragm electrolytic cell (for production of caustic soda), as it

A. Has larger production capacity per unit cell

B. Consumes less power per ton of Cl2 produced

C. Produces high purity (70%) caustic soda directly

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

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Temporary hardness of water can be removed by

A. Addition of alum (a coagulant)

B. Boiling

C. Filtration (through gravity sand filter)

D. Addition of lime

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Fatty material used in soap making is

A. Fatty acid

B. Fatty alcohols

C. Tallow

D. Detergents

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Removal of dirt/soil by soaps or detergent does not involve the __________ of soil.

A. Emulsification

B. Dispersion

C. Precipitation

D. Wetting

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Vanillin is a type of

A. Anti-pyretic drug

B. Food preservative

C. Flavour

D. Dye

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Haemoglobin is a/an

A. Amino acid

B. Biological catalyst

C. Protein

D. Enzyme

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Rotary kiln is not involved in the production of

A. Cement

B. Lime from limestone

C. Slaked lime from quick lime

D. None of these

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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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Digestion of wood-base materials (for manufacture of pulp) is done to

A. Remove lignin

B. Produce long fibres

C. Prevent deterioration on storage

D. None of these

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Raw materials used for producing __________ cement does not contain iron oxide.

A. Waterproof

B. Slag

C. White

D. Pozzolan

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The most widely used coagulant for removing suspended impurities from water is

A. Bleaching powder

B. Chlorine

C. Calcium sulphate

D. Alum

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Linde process of gas liquefaction employs

A. Exchange of heat with colder stream

B. Adiabatic expansion through a throttle valve (Joule-Thomson expansion)

C. Adiabatic expansion against a piston or in a turbine

D. Merely compressing the gas beyond its critical pressure

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Neoprene is a

A. Monomer

B. Synthetic rubber

C. Polyester

D. None of these

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Double Contact Double Absorption (DCDA) process is the most recent process for the manufacture of

A. Nitric acid

B. Sulphuric acid

C. Ammonium sulphate

D. Hydrochloric acid

Discuss this answer

Vegetable oils and fats basically differ in their

A. Density ranges

B. Physical state

C. Chemical composition

D. Chemical properties

Discuss this answer

Accepted Answer

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

Hydrogenation of edible vegetable oils

Correct Answer :

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Related Questions

At a given temperature, the equilibrium yield of SO3 obtained from the oxidation of SO2 is proportional to (where, P = pressure of the system).

Which of the following is the main constituent of the mother liquor produced in salt industry?

Impurities present in brine is normally removed by treatment with

Cumene (isopropyl benzene) is made by

Anion exchanger is regenerated usually with

Oleum produces fumes of

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

__________ acid is the main constituent of cotton seed oil.

Lindane is

Gun powder uses

Coloured glass is obtained by mixing of colored salts. Addition of __________ oxide is done to impart greenish blue color to the glass.

Hydrogenation of oil does not

Very dilute solutions are generally used in fermentation reactions for which the optimum temperature range is __________ °C.

Which of the following is a detergent?

Coagulant is used __________ filtration.

Mercury electrolytic cells are preferred over diaphragm electrolytic cell (for production of caustic soda), as it

Temporary hardness of water can be removed by

Fatty material used in soap making is

Removal of dirt/soil by soaps or detergent does not involve the __________ of soil.

Vanillin is a type of

Haemoglobin is a/an

Rotary kiln is not involved in the production of

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

Digestion of wood-base materials (for manufacture of pulp) is done to

Raw materials used for producing __________ cement does not contain iron oxide.

The most widely used coagulant for removing suspended impurities from water is

Linde process of gas liquefaction employs

Neoprene is a

Double Contact Double Absorption (DCDA) process is the most recent process for the manufacture of

Vegetable oils and fats basically differ in their

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