Q.1
Hollander beater used during paper pulp manufacture does not facilitate the __________ of fibre.
Q.2
Sulphuric acid completely saturated with sulphur trioxide is called
Q.3
Basic oxide is absent in __________ glass.
Q.4
Insulin is an __________ drug.
Q.5
Inversion of sucrose produces
Q.6
Main constituent of limestone is
Q.7
Ethylene oxide is produced by oxidation of ethylene in presence of AgO catalyst at
Q.8
Bleaching of paper pulp is done with
Q.9
__________ is produced using polycondensation reaction.
Q.10
Acrylonitrile is mainly used in the __________ industry.
Q.11
Most commonly used rubber vulcanising agent is
Q.12
Enzymes are
Q.13
Neoprene is chemically known as
Q.14
__________ of rubber decreases after its vulcanisation.
Q.15
The main aim behind cooling the digested chip at the bottom portion of the digestor by injecting cold black liquor is to
Q.16
Isopropyl benzene produced by alkylation of benzene with propylene is known as
Q.17
Coloured glass is obtained by mixing of colored salts. Addition of __________ oxide is done to impart greenish blue color to the glass.
Q.18
Direct conversion of chemical energy into electrical energy is done in a
Q.19
Alcohol content in freshly prepared natural and fortified wine may be respectively around __________ percent.
Q.20
The function of gypsum addition during cement making is to
Q.21
Catalyst used in the hydrogenation of oil is
Q.22
Flux addition during smelting of ore is done to
Q.23
Blue colour is imparted to glass by the addition of
Q.24
Oils and fats are converted to soap in a process called
Q.25
Epoxy resin
Q.26
Anion exchanger is regenerated usually with
Q.27
Rosin soap is added during paper manufacture to
Q.28
Sulphuric acid is mainly used in the __________ industry.
Q.29
A bio-catalyst produced by living cells which acts independent of the cell is called a/an
Q.30
Pick out the wrong statement pertaining to nitric acid.
Q.31
Exothermic neutralisation reaction between caustic soda and dodecylbenzene sulphonic acid produces sodium dodecylbenzene sulphate, which is a/an
Q.32
Resistance to fusion of the refractory under a steady rising temperature condition is called
Q.33
Enamels
Q.34
Sea weeds are an important source of
Q.35
Cation exchanger is regenerated usually with
Q.36
In the Solvay process, the product from the calciner is
Q.37
Magnesium and calcium __________ cause temporary hardness of water.
Q.38
Which of the following is a disacchride?
Q.39
Sucrose content in the raw juice extracted from sugar cane is about __________ percent.
Q.40
Massacuits is a terminology used in the __________ industry.
Q.41
Helium is produced on commercial scale from
Q.42
__________ is used as a flux in the extraction of iron from iron ore (hametite) in blast furnace.
Q.43
The most widely used coagulant for removing suspended impurities from water is
Q.44
Dacron is a
Q.45
Enzymes are organic catalysts used in the __________ reactions.
Q.46
Styrene (a monomer for the production of polystyrene) is commercially produced by
Q.47
Mercury cells for caustic soda manufacture, compared to diaphragm cells
Q.48
Salt cake is chemically represented by
Q.49
Prussian blue is chemically represented by
Q.50
Ore concentration by froth floatation utilises the __________ of ore particles.
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