Related Questions

Flash distillation is suitable for separating the constituents of a binary system, which
A Form minimum boiling azeotrope
B Have very wide boiling points
C Have very close boiling points
D Form constant boiling azeotrope
Flash distillation is
A Same as differential distillation
B Used for multicomponent systems like crude refining
C Same as simple distillation
D Most useful for handling binary systems
Large scale usage of flash distillation is practised in
A Soap manufacturing
B Ammonia synthesis plant
C Polymerisation industry
D Petroleum refinning
Flash point of atmospheric distillation residue is determined by __________ apparates.
A Pensky-Martens (closed cup type)
B Abel
C Cleveland (open cup type)
D None of these
Polar organic compounds are normally used as separating agents for the azeotropic and extractive distillation. Which of the following is the most important factor to be considered for the choice of the separating agent for extractive distillation?
A Cost
B Availability
C Toxicity
D Selectivity
If the amount of the steam used in steam distillation is increased, the temperature of distillation
A Increases
B Decreases
C Remains unchanged
D Depends on relative volatility
Vacuum maintained in the vacuum distillation tower of the crude distillation plant is about __________ mm Hg (absolute).
A 5-10
B 30-80
C 150-250
D 350-400
For the same feed, feed quality and separation (in a distillation column), with the increase of total pressure, the number of ideal plates will
A Increase
B Decrease
C Remain same
D Data insufficient, can't be predicted
The-relative volatility for separation of a non-ideal binary mixture by distillation should be
A 0
B 1
C > 1
Out of two equilibrium curves, first one lies above the diagonal and the second lies below the diagonal in the x-y plot. It means that separation by distillation is
A Not possible in the second case unless vacuum is applied
B Not possible in the second case unless high pressure is applied
C More readily done in the second case compared to first one
D None of these

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