Q.1
Separation of fresh water from sea water can be done by the __________ operation.
Q.2
Bisphenol A is produced by the condensation of acetone with
Q.3
Dacron is a/an
Q.4
Catalytic oxidation of naphthalene produces
Q.5
DDT stands for
Q.6
The catalyst used in the manufacture of DDT is
Q.7
Sulphuric acid saturated with SO₃ is called
Q.8
Diaphragm electrolytic cell as compared to mercury electrolytic cell
Q.9
Pick out the wrong statement. Iodine value of an oil or fat is
Q.10
Presence of sodium tripolyphosphate (an additive) in synthetic detergent
Q.11
Commercial production of calcium carbide requires limestone and __________ as raw materials.
Q.12
Paper pulp produced by kraft/sulphate process is
Q.13
Which of the following is an additional step in the manufacture of paper from bagasse as compared to that from bamboo?
Q.14
Black liquor is converted into white liquor by
Q.15
Trinitrotoluene (TNT), an explosive, is made by the nitration of
Q.16
Flash point of most vegetable oils is about __________ °C.
Q.17
Economics of 'Solvay Process' depends upon the efficiency of
Q.18
Nylon-6 as compared to Nylon-66 is having higher
Q.19
Main product in calcium carbide-water reaction is
Q.20
CaCl(OCl) is the chemical formula of
Q.21
Celluloid is chemically
Q.22
Cement mainly contains
Q.23
The process involved in converting rubber into a thin sheet or coating it on fabric is called
Q.24
Raw material used in alcohol distilleries in India is
Q.25
Use of hydrated lime in water treatment
Q.26
The drug used in contraceptives is
Q.27
Bleaching powder (chemically known as calcium chloro hypochlorite) is commercially produced by the action of chlorine on
Q.28
Good quality of edible salt is obtained from brine by the process of
Q.29
Glycerine is a by-product of the __________ industry.
Q.30
Sudden temperature fluctuation does not affect pyrex glass, because of its
Q.31
Carboxymethyl cellulose (CMC) is added in detergents to
Q.32
Which of the following is used as a coagulant in water treatment?
Q.33
Chemical formula of oleum is
Q.34
Chemical name of 'alum' is
Q.35
Fermentation of molasses to produce ethyl alcohol is done at __________ °C
Q.36
The end bleaching agent used to move last traces of colour bodies from the pulp is
Q.37
Nitrile rubber is produced by the polymerisation of
Q.38
Carborundum consists mainly of
Q.39
CaSO₄ .1/2 H₂O is known as
Q.40
Sand and __________ is fused at 1300°C, to produce sodium silicate.
Q.41
Ca(OH)₂ is called
Q.42
Carboxymethyl cellulose (CMC) is added in detergents to act as a/an
Q.43
Starting material for the production of butadiene in India is
Q.44
Coal tar is used as a
Q.45
Chemical name of soda ash is
Q.46
Bordeaux mixture is a/an
Q.47
The noble gas which occurs most abundantly in the atmosphere is
Q.48
Styrene-butadiene-rubber (SBR) as compared to natural rubber has
Q.49
The main product of high temperature carbonisation of coal is
Q.50
Bakelite is
0 h : 0 m : 1 s