Q.1
Alcohol is produced by the
Q.2
Yellow glycerine is made into white, using
Q.3
Percentage of glycerene present in the spent lye obtained during soap manufacture is about
Q.4
Out of the following processes of paper pulp manufacture, the maximum corrosion problem in digestion & handling equipments is encountered in the __________ process.
Q.5
Styrene butadiene rubber (SBR) is
Q.6
With increase in temperature, the equilibrium constant at constant pressure (Kp) for oxidation of sulphur dioxide
Q.7
Hydrazine is used in water treatment for the removal of
Q.8
Polyvinyl chloride (PVC) is
Q.9
'Synthesis gas' meant for the synthesis of organic compound is a variable mixture of
Q.10
Oil produced by solvent extraction
Q.11
Conversion of SO₂ to SO₃ in Monsanto 4-pass converter is about __________ percent.
Q.12
Gun powder, which is an explosive comprises of charcoal, sulphur and
Q.13
Starting material for the production of styrene butadiene rubber (SBR) is
Q.14
Very dilute solutions are generally used in fermentation reactions for which the optimum temperature range is __________ °C.
Q.15
Chloramines are used in water treatment for
Q.16
Pick out the endothermic reaction out of the following.
Q.17
Double Contact Double Absorption (DCDA) process is the most recent process for the manufacture of
Q.18
Le-Blanc process is a primitive process for the manufacture of
Q.19
L.D. converter is used in the production of
Q.20
90% of the caprolactum is converted to nylon-6 on its condensation polymerisation in the reactor maintained at __________ °C.
Q.21
Setting of plaster of paris is accompanied with
Q.22
Phthalic anhydride is used
Q.23
Pick out the wrong statement.
Q.24
Argon is the third largest constituent of air (followed by N₂ & O₂). Its percentage by volume in air is
Q.25
Pick out the true statement pertaining to water treatment.
Q.26
A 'unit process' is exemplified by the
Q.27
Cement setting under water employs a/an __________ process.
Q.28
Pick out the false statement pertaining to water treatment.
Q.29
Phenol formaldehyde
Q.30
Ordinary glass is not a/an
Q.31
Which one of the following is not likely to be a constituent of vegetable oils?
Q.32
Main constituents of cotton fiber is
Q.33
Extraction of __________ employs an electrolytic process.
Q.34
Phenol is mainly used
Q.35
Absorption of SO₃ in 97% H₂SO₄ is
Q.36
The most reactive allotropic form of phosphorus is __________ phosphorus.
Q.37
Major component of flint glass is
Q.38
Which of the following is the main constituent of the mother liquor produced in salt industry?
Q.39
__________ iron is the purest form of iron.
Q.40
Liquefaction of gases can not be done by
Q.41
Dry ice (solidified CO₂) is used for the
Q.42
Sea water contains about __________ ppm of bromine.
Q.43
Oxygen is separated by distillation from air after its liquefaction. The boiling point of oxygen is about __________ °C.
Q.44
Phosphoric acid is prepared from
Q.45
Hydrogen gas is not produced commercially (for nitrogeneous fertiliser manufacture) by
Q.46
Process conditions in fermentator used for production of penicillin is
Q.47
Function of thinner in a paint is to
Q.48
__________ process is used for the manufacture of sodium carbonate by ammonia soda process.
Q.49
Which one of the following is not an elastomer?
Q.50
Unsaturated oils compared to saturated oils have
0 h : 0 m : 1 s