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Q. Pick out the correct statement.
  • A. In case of liquid-liquid extraction, no separation is possible, if the selectivity of the solvent used is unity
  • B. With increase in temperature, the selectivity of the solvent used in solvent extraction decreases
  • C. The selectivity of solvent used in solvent extraction is unity at the plait point
  • D. All (A), (B) and (C)