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GATE ES 2026 | Question: 34

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Which of the following options is/are TRUE about reverse osmosis process?

  1. Reverse osmosis is used as a pretreatment for microfiltration process.
  2. Ultrafiltration is used as a pretreatment for reverse osmosis process.
  3. Membrane fouling occurs in microfiltration and reverse osmosis processes.
  4. Concentration polarization does not occur in reverse osmosis process.

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