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
Component molecules are nonpolar
Size of component molecules are not equal
Attractive forces between like and unlike molecules in the solution are approximately equal

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Mass Transfer
Flash distillation is

Most useful for handling binary systems
Same as differential distillation
Used for multicomponent systems like crude refining
Same as simple distillation

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