Multiple choice

Melting points of four solids: W, X, Y and Z increase in the order W < X < Y < Z. Which of the following solids will have the maximum forces of attraction between its particles?

  1. Z

  2. Y

  3. X

  4. W

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A Correct answer
Explanation

The greater the force of attraction, the more is the energy required to overcome this force of attraction in order to convert solid to liquid. Z has the highest melting point, i.e. the forces of attraction are the highest in its particles.