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Mass Transfer

Mass Transfer
Tea percolation employs

None of these
Leaching
Absorption
Liquid-liquid extraction

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Mass Transfer
With increase in temperature, the leaching rate increases because of the

None of the listed here
Both Decreased viscosity of liquid & Increased diffusivity
Decreased viscosity of liquid
Increased diffusivity

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Mass Transfer
Berl saddle made of carbon cannot be used for

Alkalis
Oxidising atmosphere
H₂SO₄
SO₂

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Mass Transfer
The solvent used in liquid-liquid extraction should have __________ less than one.

Neither A nor B
Selectivity
Distribution co-efficient
Both A & B

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Mass Transfer
In rectifying section of a continuous distillation column, the

Vapour is enriched with high boilers
Vapour is enriched with low boilers
None of these
Liquid is stripped of high boilers

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Mass Transfer
For a fixed number of ideal stages in a distillation column, as the reflux ratio is increased, the difference in composition between the top and bottom product streams

Increases
Remains unaffected
Passes through a maximum
Decreases

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