Q.1
Widely used method for the conditioning of boiler feed water is the
Q.2
Neon gas is
Q.3
Naphthols are derivates of
Q.4
Which of the following has sodium bicarbonate as its main constituent ?
Q.5
In an integrated steel plant, NH₃ present in coke oven gas is normally recovered as
Q.6
Pick out the wrong statement.
Q.7
Fermentation is adversely affected by the
Q.8
Pick out the wrong statement.
Q.9
Which of the following is not produced on commercial scale from sea water?
Q.10
Metallic soap (e.g. aluminium or calcium salts of fatty acids) can be used
Q.11
Shrinkage volume in cement setting does not depend upon the
Q.12
Pick out the wrong statement.
Q.13
Nicotine is
Q.14
Dehydrogenation of ethyl benzene produces
Q.15
Pick out the wrong statement pertaining to solvent extraction of oil.Rate of extraction
Q.16
Pick out the wrong statement.
Q.17
__________ of quicklime produces slaked lime.
Q.18
Na₂CO₃ is called
Q.19
Dehydrogenation of isopropanol produces
Q.20
Which of the following is the second major component of cement?
Q.21
Styrene is produced from ethyl benzene by the process of
Q.22
Styrene is produced from ethyl benzene by the process of
Q.23
One of the steps during refining of cane sugar consists of addition of hydrated lime to the sugar syrup followed by carbonation of the resulting solution. The purpose of this step is to
Q.24
The most commonly used substance to speed up the sedimentation of sewage is
Q.25
Nitrogen is an essential component of
Q.26
Reverse osmosis is normally used for the
Q.27
Maleic anhydride is produced by catalytic oxidation of
Q.28
Which of the following is not a product of coal tar distillation?
Q.29
Catalyst used in the oxidation of benzene to produce maleic anhydride is
Q.30
The enzyme which converts starch into the disacharides maltose is
Q.31
Trinitro-toluene (TNT) is
Q.32
Oils are partially hydrogenated (not fully) to manufacture vanaspati, because fully saturated solidified oils
Q.33
Which of the following fuel gases contains maximum amount of carbon monoxide?
Q.34
Poly tetraflouro ethylene (P.T.F.E.) is known as
Q.35
Zeolite is a/an
Q.36
Thermoplastic materials
Q.37
Thermosetting materials
Q.38
A cane sugar factory having sugar production rate of 10 tons/day will produce about __________ tons/day of bagasse (after consumption by the factory for heating etc.).
Q.39
Which of the following is a detergent?
Q.40
Drinking (potable) water treatment does not involve
Q.41
Esterification reaction produces
Q.42
Alcohol percentage in molasses may be around
Q.43
Mineral oils (e.g. petroleum oils) are preferred over fatty oils (e.g. mustard oil, ghee, tallow, palm oil, olive oil etc.) as a lubricant due to its
Q.44
Mercury electrolytic cells are preferred over diaphragm electrolytic cell (for production of caustic soda), as it
Q.45
Potassium is kept & transported under
Q.46
Synthetic glycerine is produced from
Q.47
Thorium is mainly used
Q.48
Alum [Al2(SO₄)₃] is used as a coagulant in water treatment to remove
Q.49
Synthesis gas is a mixture of
Q.50
Systemic insecticides
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