Mass Transfer
Solvent extraction is the terminology applied to the liquid-liquid extraction, which is preferred for the separation of the components of liquids, when

Extracting solvent is cheaply & abundantly available
One of the liquid components has very high affinity towards the solvent
Viscosity of liquid components is very high
One of the liquid components is heat sensitive

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Mass Transfer
Pick out the wrong statement. Raoult's law does not apply, when the

Chemical combination or molecular association between unlike molecules takes place in the formation of solution
Attractive forces between like and unlike molecules in the solution are approximately equal
Component molecules are nonpolar
Size of component molecules are not equal

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