The pH of four solutions W, X, Y, Z are 4, 6, 8, 10 respectively, therefore

  • A none of these solutions is acidic
  • B the pH of Y is made more acidic by addition of distilled water
  • C Z is the most acidic solution
  • D W is the most acidic solution
  • E X is neutral
jamb 1978chemistry

The correct answer is D. W is the most acidic solution

W is the most acidic solution since 4 < 6 < 8 < 10. The lower the value on the pH scale, the more acidic a solution.

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