Which of the following operations does not involve leaching?

1.	Which of the following operations does not involve leaching?
A.	Dissolving gold from ores
B.	Dissolving pharmaceutical products from bark or roots
C.	Dissolving sugar from the cells of the beet
D.	Removing nicotine from its water solution by kerosene
Answer» E.

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Which of the following operations does not involve leaching?

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