Which of the following compounds dissolves in water to form a solution with pH below…

Chemistry WAEC 1999

Which of the following compounds dissolves in water to form a solution with pH below 7?

  • Sodium tetraoxosulphate (VI)
  • Potassium hydroxide
  • Ammonium chloride checkmark
  • Sodium trioxocarbonate (IV)

The correct answer is: C

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