Q.1
Bio-degradable detergents
Q.2
Bitterns is a/an
Q.3
Saponification number of an oil or fat
Q.4
The difference between saponification value and acid value is
Q.5
Hydrogenation of oil takes place in a/an __________ reactor.
Q.6
Calcination of gypsum produces
Q.7
CaO is called
Q.8
High temperature carbonisation of coal produces
Q.9
BHC (Benzene hexachloride) is made by the chlorination of benzene
Q.10
Multistage catalytic converter is not used in the
Q.11
Temperature during hydrogenation of oil should not be more than 200°C, otherwise it will result in
Q.12
Presence of H₂S in raw water (to be chlorinated) results in the
Q.13
Platinum is a versatile catalyst for many processes in chemical industries. It is highly prone to be poisoned by the presence of
Q.14
Which is the most suitable dye for synthetic fibres?
Q.15
Blue vitriol is chemically
Q.16
Salt is the basic raw material for the manufacture of
Q.17
Fatty material used in soap making is
Q.18
Fermentator temperature during production of alcohol from molasses is around __________ °C.
Q.19
Vinyl chloride (CH₂ = CH.Cl) is produced by the thermal pyrolysis of ethylene dichloride at a pressure & temperature of
Q.20
Raw materials for 'Solvay Process' for manufacture of the soda ash are
Q.21
Penicillin is separated from fermented broth by
Q.22
The temperature in the calcium carbide furnace is __________ °C.
Q.23
Presence of carbonaceous matter in the sewage
Q.24
Lubricating greases are a mixture of
Q.25
Hydrogenation of edible vegetable oils
Q.26
Oxidation of ortho-xylene in presence of __________ catalyst is done to produce phthalic anhydride on commercial scale.
Q.27
All enzymes are made of
Q.28
Reaction of an alcohol with organic acid is called the __________ reaction.
Q.29
__________ process is used for the commercial production of nitric acid by the catalytic oxidation of ammonia.
Q.30
Phosphate rock is a raw material for the manufacture of
Q.31
Nitroglycerene absorbed in wood flour, sodium nitrate or ammonium nitrate is commercially used as a controlled explosive called dynamite. The raw material used for its manufacture are glycerene, nitric acid and
Q.32
Calcareous & argillaceous materials are used in the manufacture of
Q.33
Rancidity of the fatty oil can be reduced by its
Q.34
Which of the following is used as a coagulant in treating turbid water?
Q.35
Antibiotic
Q.36
__________ paper is used in the manufacture of newsprint paper.
Q.37
Impurities present in brine is normally removed by treatment with
Q.38
Which of the following is an organo-metal-lic compound?
Q.39
Analgesic drugs are
Q.40
Carbon tetrachloride (CCl₄) is the starting raw material for the manufacture of
Q.41
Sizing material is incorporated in paper to
Q.42
Chemical name of Grignard reagent is
Q.43
Permanent hardness of water is due to the presence of calcium & magnesium
Q.44
Riboflavin is a/an
Q.45
Pick out the exothermic reaction out of the following:
Q.46
Grignard reagent is chemically known as
Q.47
Chemical name of aspirin (an analgesic drug) is
Q.48
Digestion of wood-base materials (for manufacture of pulp) is done to
Q.49
In industrial nomenclature, alcohol means
Q.50
Addition of calcium oxide to water produces
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