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      Question

      When a bottle of perfume is opened in one corner of a

      room the smell spreads soon throughout the room. This is an example of -
      A surface tension Correct Answer Incorrect Answer
      B capillarit Correct Answer Incorrect Answer
      C viscosity Correct Answer Incorrect Answer
      D diffusion Correct Answer Incorrect Answer

      Solution

      Diffusion is the spreading – mixing of gases through molecular motion.

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