For concentrating an aqueous solution of a material like anhydrous Na₂SO₄, w

Question

For concentrating an aqueous solution of a material like anhydrous Na₂SO₄, whose solubility decreases with rise in temperature, the most suitable evaporator is a __________ evaporator.

Options:

A . High pressure

B . Vacuum

C . Backward feed

D . None of these

Answer: Option B

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