The basic difference between vegetable oils and fats is in their
Density
Chemical properties
Physical state
Composition
Correct Answer :
C. Physical state
Related Questions
Isopropyl benzene produced by alkylation of benzene with propylene is known as
Neoprene
Cumene
Gelatin
Mercaptans
The drug used in contraceptives is
Sulfadiazine
Mestranol
Methyl salicylate
Penicillin
Linde process of gas liquefaction employs
Exchange of heat with colder stream
Adiabatic expansion through a throttle valve (Joule-Thomson expansion)
Adiabatic expansion against a piston or in a turbine
Merely compressing the gas beyond its critical pressure
Sulphur addition in soap is done to
Improve the soap texture
Cure pimples & dandruff
Fasten lather formation
Increase its cleansing action
Most widely and commonly used coagulant for the removal of suspended impurities in water is
Bleaching powder
Slaked lime
Alum
Copper sulphate
Fumigant insecticides
Kill insects, when they eat it
Emit poisonous vapour
Are absorbed throughout the plant
None of these
Oxidation of ortho-xylene in presence of __________ catalyst is done to produce phthalic anhydride on commercial scale.
Nickel
Vanadium
Alumina
Iron
Pick out the exothermic reaction out of the following:
C + H2O = CO + H2
CaC2 + H2O = Ca(OH)2 + C2H2
MgCO3 = MgO + CO2
All (A), (B) and (C)
Parathion and Malathion are
Pesticides
Plasticisers for unsaturated polyesters
Pain-relieving drugs (analgesic)
Tranquilisers
Bio-degradable detergents
Can be readily oxidised
Pose problem in sewerage plant
Have an isoparaffinic structure
Should not be used as it spoils the cloth
Percentage of glycerine present in the spent lye obtained during soap manufacture is about
0.5
5
20
35
The enzyme which converts starch into the disaccharides maltose is
Diastase
Maltase
Yeast
None of these
Main constituents of natural rubber is
Polystyrene
Polyisoprene
Polybutadiene
Polychlorophrene
Raw materials used for producing __________ cement does not contain iron oxide.
Waterproof
Slag
White
Pozzolan
The major constituents of glass are
Lime, clay and soda ash
Sand, lime and soda ash
Silica, alumina and clay
Silica, alumina and soda ash
Sugar content in sugarcane on cane basis is about __________ percent by weight.
1 to 5
5 to 10
15 to 20
20 to 30
Deaeration of water in its treatment is necessary, as it
Minimises its turbidity
Helps in controlling its taste and odour
Minimises its corrosiveness
None of these
Out of the following processes of paper pulp manufacture, the maximum corrosion problem in digestion & handling equipments is encountered in the __________ process.
Mechanical
Sulphate/Kraft
Sulphite
Neutral sulphite semi-chemical
Vinyl chloride (CH2 = CH.Cl) is produced by the thermal pyrolysis of ethylene dichloride at a pressure & temperature of
4 kgf/cm2 & 500°C
10 kgf/cm2 & 1000°C
40 kg/cm2 & 200°C
100 kgf/cm2 & 500°C
Salt cake is chemically represented by
Na2SO4
CaSO4. ½H2O
MgSO4
BaSO4
The difference between saponification value and acid value is
Called ester value
Always negative
Constant for all fatty oils
None of these
L.D. converter is used in the production of
Pig iron
Steel
Copper
Zinc
Bakelite is chemically known as
Polyvinyl chloride (PVC)
Polybutadiene
Phenol formaldehyde
Polyurethane
The main use of HCl is in the
Drilling of petroleum wells and pickling of steel sheets
Manufacture of cationic detergent
Treatment of spent fuel of nuclear reactor
None of these
Permanent hardness of water can be removed by
Simply boiling
Adding alum
Passing it through cation & anion exchangers
All (A), (B) and (C)
Which of the following is used as a coagulant in water treatment?
Chloramine
Chlorine
Ferrous sulphate
Hydrogen peroxide
Which of the following sugars is the sweetest?
Glucose
Fructose
Sucrose
Lactose
Which one of the following is not likely to be a constituent of vegetable oils?
Citric acid
Oleic acid
Stearic acid
Glycerol
The type of high refractive index glass used in optical instruments is __________ glass.
Pyrex
Flint
Crookes
None of these
Pick out the wrong statement.
Cold rubber (SBR) is superior as compared to hot rubber (SBR)
Polymerisation temperature can modify the properties of SBR
Production of cold SBR employs lower pressure as compared to that of hot SBR
None of these