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What happens to the molecules that come into contact with the surface of a solid?

Options

  1. AThey penetrate into the bulk
  2. BThey repel each other
  3. CThey accumulate at the surface
  4. DThey remain evenly distributed

Correct answer

C. They accumulate at the surface

Step-by-step solution

The paragraph states that the molecules that come into contact with the surface have the tendency to accumulate at the surface.

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