Q.1
Viscosity index improver (like polystrene or polyisobutylene) is added to lubricant to
Q.2
P.T.F.E. (Poly tetra fluoro ethylene) is commercially known as
Q.3
Cumene is the starting material for the production of
Q.4
Molasses is the starting material for the production of
Q.5
Flexible foam (for mattresses) is usually made of
Q.6
Kopper-Totzek coal gasifier
Q.7
Concentration of NaOH solution produced by mercury electrolytic cell is about __________ percent.
Q.8
Tall oil obtained as a by-product from the black liquor recovery is
Q.9
Main use of hydrazine is
Q.10
In the manufacture of sulphuric acid from elemental sulphur, the following sequence of major operations is followed :
Q.11
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?
Q.12
Which of the following sugars is the sweetest?
Q.13
Which of the following is not an antibiotic?
Q.14
Which of the following is not an insecticide?
Q.15
Nylon 66 is so named because the
Q.16
Lindane is
Q.17
Litharge is
Q.18
The amount of benzene present in pure benzol is about __________ percent.
Q.19
Concentration of NaOH solution produced by diaphragm electrolytic cell is about __________ percent.
Q.20
Which of the following is an unsaturated fatty acid?
Q.21
Zeolite used in water softening process (cation exchange) is regenerated by washing with
Q.22
An oil is converted into fat by its
Q.23
Reaction of ethylene glycol and dimethyl terephthalate (DMT) produces
Q.24
Which of the following is not a raw material used for the manufacture of ordinary glass?
Q.25
__________ is the major constituent of the Portland cement.
Q.26
The product obtained on mixing calcium oxide with water is called
Q.27
Concentration of sulphide ores is done usually by
Q.28
The yield of tar from high temperature carbonisation of dry coal is about __________ percent.
Q.29
White phosphorous is stored under water, because
Q.30
The most stable allotropic form of phosphorous is the __________ phosphorous.
Q.31
Portland cement consists mainly of
Q.32
Pick out the wrong statement pertaining to the properties of glasses. Glasses generally have
Q.33
Deacon's method is used for the manufacture of
Q.34
Catalytic oxidation-dehydrogenation of methyl alcohol produces
Q.35
The combustion reaction, C + O₂ = CO₂, is
Q.36
Kaoline is a/an
Q.37
Coke oven gas consists mainly of
Q.38
Coagulant is used __________ filtration.
Q.39
The compressive strength of cement should not be less than about 110Kg/cm² after three days & not less than 170Kg/cm² after seven days. The fineness of an ordinary cement as determined by turbidimetric method should be about __________ cm²/gm.
Q.40
Solvay process is used for the manufacture of
Q.41
The terminology 'BTX' used in coal tar distillation industry refers to
Q.42
In Kraft process of paper manufacture, white cooking liquor consists of caustic soda
Q.43
Sodium chloride content in sea water is about __________ gms/litre.
Q.44
Pick out the wrong statement pertaining to the soap manufacture.
Q.45
Carbon disulphide is mainly used in the production of
Q.46
Cooking liquor in case of sulphite process is
Q.47
The main component of pyrex glass is
Q.48
In the Lurgi coal gasifier
Q.49
Use of chlorine in the treatment of sewage
Q.50
Commonly used glass is known as the __________ glass.
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