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This quiz contains multiple-choice problems on azeotropic distillation and elements, extractive distillation and its terminology.
A minimum-boiling azeotrope can be formed by
Azeotrope entrainer
Any chemical
Water
Benzene
An example of a minimum azeotrope is
Benzene and water
Ethanol and water
Water and ethyl Alcohol
Benzene and alcohol
Homogeneous azeotropes exist when the vapour is in equilibrium with
Single liquid phase
Single solid phase
Dual phase
Triple phase
Heterogeneous azeotropes exist when the vapour is in equilibrium with
Dual liquid phase
Dual solid phase
Dual phase
Triple phase
Esters are produced by reacting alcohols with
Organic acids
Pure base
P-Xylene
PTA
Young performed his azeotropic dehydration of alcohol by
Continuous method
Batch method
Stage method
Full method
Ethanol is dehydrogenated oxidatively to acetaldehyde using a __ catalyst.
Ag
Pt
Pb
Hg
Relative volatility close to unity could indicate the presence of
Separation point
Pinch point
Deep point
Extraction point
The esterification of alcohols involves
Elimination reaction
Substitution reaction
Irreversible reaction
Reversible reaction
PSD is called
Pressure straight desorption
Pressure swing distillation
Pressure singer desorption
Parameter swing distillation
For easy separation, the relative volatility αi,j tends to
0
1
1.5
0.5
If the boiling temperature isobar exhibits an extremal point, the mixture is said to be
Fully azeotropic
Totally azeotropic
Tangentially azeotropic
Partially azeotropic
A ngative deviation from Raoult’s law results in
Minimum boiling azeotrope
Maximum boiling azeotrope
Tangential azeotrope
Elliptical azeotrope
An ideal mixture that obeys Raoult’s law results in
Minimum boiling azeotrope
Maximum boiling azeotrope
Tangential azeotrope
Ideal azeotropes
An azeotrope occurs when there is same
Bubble point
Boiling point
VLE composition
Pressure equilibrium
