Mass Transfer
A minimum boiling azeotrope is exemplified by

Water-isobutyl alcohol
None of these
Toluene-benzene
Acetone-carbon disulphide

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Mass Transfer
In case of an absorber, the operating

Line always lies below the equilibrium curve
Line always lies above the equilibrium curve
Line can be either above or below the equilibrium curve
Velocity is more than the loading velocity

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