What Makes a Semipermeable Membrane Selective for One Chemical Species

question 51

Multiple Choice

What makes a semipermeable membrane selective for one chemical species but not another?

• A)The pores in the membrane select by size,they are big enough for water only.
• B)The material is hydrophilic and therefore only allows water through.
• C)The material is hydrophobic and therefore only allows water through.
• D)The material chemically reacts with everything but water.
• E)none of the above

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