Related Questions

Vegetable oils are hydrogenated in a __________ reactor.
A Slurry
B Plug flow
C Homogeneous catalytic
D None of these
After the increase of price of oil by 40%, a family decided to reduce its oil consumption so that the expenditure for oil goes up by 26% only. If the total consumption of oil before the price rise was 10 kg per month, then what is the current consumption of oil per month (in kg)?
A 8
B 8.50
C 9
D None of these
In case of a __________ reactor, the composition in the reactor and at the exit of the reactor is the same.
A Semi-batch
B Tubular
C Batch
D Back-mix
Nickel percentage in invar which is an iron-nickel alloy, and is used as a thermocouple material is
A 12
B 36
C 54
D 68
Invar tapes used for measuring base lines, is made of nickel-iron alloy containing nickel
A 24 %
B 36 %
C 40 %
D 60 %
Nickel is not used as a catalyst in the __________ reaction.
A Shift conversion
B Oil hydrogenation
C Steaming reforming of naphtha
D Ammonia cracking/dissociation
For the hydrogenation of oils (i) __________ is commonly used as catalyst and (ii) __________ is a catalyst poison.
A (i) platinum (ii) sulphur
B (i) palladium (ii) oxygen
C (i) nickel (ii) sulphur
D (i) nickel (ii) oxygen
Oils are partially hydrogenated (not fully) to manufacture vanaspati, because fully saturated solidified oils
A Cause cholesterol build up and blood clotting
B Are prone to rancid oxidation
C Always contain some amount of nickel (as their complete removal is very difficult)
D Have affinity to retain harmful sulphur compounds
Nickel is not used as a catalyst in the
A Fischer-Tropsch process
B Shift conversion
C Hydrogenation of oil
D Ostwald's process of HNO3 manufacture
CANDU type nuclear reactor using natural uranium as fuel is the extensively used nuclear reactor because of the fact that the
A Specific fuel consumption is very low due to the use of heavy water
B Fuel cost is much lower than that used in pressurised water or boiling water reactor
C Heavy water is used both as coolant as well as moderator
D Both B and C

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