Question

When the efficiency of extraction is said to be larger
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Answer 1

The efficiency of extraction is said to be larger at a more acidic pH level.

• The extraction efficiency is larger at more acidic pH levels since HA is the solute's dominant form in the aqueous phase.  

• At a more basic pH, where A– is the solute's dominant form, the extraction efficiency is lesser.

• So, we can say that the efficiency of extraction is larger at acidic pH and lower at basic pH.

Hope it helped...