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Ultrasonic waves are used for stirring liquid solutions because they

  • A.Do not produce noise during the operation
  • B.Are easy to produce
  • C.Can produce perfectly homogeneous solutions
  • D.Do not produce chemical reactions in the solution

Answer: C

Because they produce perfectly homogeneous solutions.

Ultrasound sets up rapid pressure oscillations that create and collapse microscopic bubbles - cavitation - and the resulting microjets mix the liquid down to a very fine scale, far more thoroughly than mechanical stirring.

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