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Pick out the correct statement.

A. A fat is converted into oil by its hydrogenation

B. There is no difference between a fat and an oil so far as its physical properties are concerned

C. All vegetable oils except coconut oil, contains fatty acids having more than sixteen carbon atoms

D. Vegetable oils are classified as drying, non-drying and semi drying oils depending upon their fatty acids content

Correct Answer :

C. All vegetable oils except coconut oil, contains fatty acids having more than sixteen carbon atoms


Related Questions

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Chlorine gas is produced by the electrolysis of brine (NaCl solution with solid NaCl make up) in mercury electrolytic cell. Which of the following is the anodic reaction?

A. Oxidation of Na+ ions

B. Oxidation of Cl- ions

C. Reduction of Na+ ions

D. Reduction of Cl- ions

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Commercially ethylene is produced from naphtha by

A. Catalytic cracking

B. Catalytic dehydrogenation

C. Pyrolysis

D. Hydrocracking

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CaCl(OCl) is the chemical formula of

A. Hypo

B. Bleaching powder

C. Plaster of Paris

D. Aqua regia

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Polyvinyl chloride (PVC) is

A. A thermosetting material

B. A condensation polymerisation product

C. Made by employing emulsion polymerisation

D. None of these

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Exothermic condensation reaction of monochlorobenzene with chloral in presence of 20% oleum as catalyst produces DDT. The reaction temperature is maintained at __________ °C.

A. 15-30

B. 90-100

C. 250-300

D. < 0

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Which of the following is not produced on commercial scale from sea water?

A. Bromine

B. Magnesium compounds

C. Potassium compounds

D. Sodium sulphate

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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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Manufacture of phthalic anhydride uses __________ as a catalyst.

A. Ni

B. Cr

C. V2O5

D. Al2O3

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Phenol is mainly used

A. To produce benzene

B. To produce phenol formaldehyde

C. To produce polyester resin

D. As a plasticiser for unsaturated polyester

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The gasification reaction represented by, C + H2O = CO + H2, is a/an __________ reaction.

A. Exothermic

B. Endothermic

C. Catalytic

D. Autocatalytic

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__________ is the major constituent of the Portland cement.

A. Calcium carbonate

B. Calcium oxide

C. Tricalcium silicate

D. Calcium sulphate

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Oils are partially hydrogenated (not fully) to manufacture Vanaspati, because fully saturated solidified oils

A. Cause cholesterol build up and blood clotting

B. Are prone to rancid oxidation

C. Always contain some amount of nickel (as their complete removal is very difficult)

D. Have affinity to retain harmful sulphur compounds

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Glycerine is a by-product of the __________ industry.

A. Soap

B. Detergent

C. Oil hydrogenation

D. Paint

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Hollander beater used during paper pulp manufacture does not facilitate the __________ of fibre.

A. Cutting

B. Fibrillation

C. Hydration

D. Strengthening

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Mannheim furnace is used in the manufacture of

A. Hydrochloric acid

B. H2SO4 by Chamber process

C. Calcium carbide

D. Corundum

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Which of the following, when pyrolysed, produces Perchloroethylene?

A. Ethylene dichloride

B. Chlorobenzene

C. Carbon tetrachloride

D. Chlorinated paraffin

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__________ is used as a flux in the extraction of iron from iron ore (haematite) in blast furnace.

A. Bauxite

B. Limestone

C. Quartz

D. Manganese

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Presence of H2S in raw water (to be chlorinated) results in the

A. Reduced softening capacity of zeolite

B. Increased dosage of chlorine to provide a disinfecting residual in the water

C. Easy removal of its hardness

D. None of these

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Which of the following has sodium bicarbonate as its main constituent?

A. Baking soda

B. Baking powder

C. Washing soda

D. None of these

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Gelatine which is a nitrogenous organic protein is obtained by the hydrolysis of

A. Collagen

B. Tannin

C. Molasses

D. Carbohydrate

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Brackish water which contains mostly dissolved salt, can be purified by the __________ process.

A. Reverse osmosis

B. Sand filter

C. Lime soda

D. Permutit

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Viscose rayon is chemically

A. Cellulose nitrate

B. Regenerated cellulose nitrate

C. Cellulose acetate

D. Regenerated cellulose acetate

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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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Chemical name of 'alum' is

A. Barium sulphate

B. Aluminium sulphate

C. Aluminium chloride

D. Calcium sulphate

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Catalytic oxidation of naphthalene produces

A. Styrene

B. Phenol

C. Phthalic anhydride

D. None of these

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In an integrated steel plant, NH3 present in coke oven gas is normally recovered as

A. (NH4)2SO4

B. NH4Cl

C. (NH4)2 NO3

D. Liquid NH3

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Portland cement consists mainly of

A. CaO & SiO2

B. SiO2 & Al2O3

C. CaO & Al2O3

D. CaO & Fe2O3

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Electro deposition of metals i.e. electroplating is never done on

A. Metals

B. Alloys

C. Refractories

D. Non-metals

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__________ process is used for the manufacture of sodium carbonate by ammonia soda process.

A. Ostwald's

B. Bosch

C. Solvay

D. Haber's

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Conversion of SO2 to SO3 in Monsanto 4-pass converter is about __________ percent.

A. 80

B. 90

C. 98

D. 100