Statement 1: In counter-current extraction, equilibrium is reached at every stage.

Statement 2: Right angled triangle method also called a difference point method is used to calculate the ideal number of stages for extraction.

Statement 1: Multi-stage cross-current extraction – the solids contain some amount of solute after every extraction.

Statement 2: Single-stage batch extractor – Used in labs and not on large scale as a solvent is continuously subjected to heat.

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1.	Statement 1: In counter-current extraction, equilibrium is reached at every stage.
A.	Statement 2: Right angled triangle method also called a difference point method is used to calculate the ideal number of stages for extraction.
B.	True, False
C.	True, True
D.	False, False
E.	False, True
Answer» C. True, True

Discussion

2.	Statement 1: Multi-stage cross-current extraction – the solids contain some amount of solute after every extraction.
A.	Statement 2: Single-stage batch extractor – Used in labs and not on large scale as a solvent is continuously subjected to heat.
B.	True, False
C.	True, True
D.	False, False
E.	False, True
Answer» D. False, False

Discussion