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  • Question

  • Which of the following is not soluble in water?


  • Options
  • A. sodium chloride
  • B. potassium sulfate
  • C. copper(II) hydroxide
  • D. silver nitrate

  • Correct Answer
  • potassium sulfate 

    Explanation

    We know that,

    All nitrates are soluble in water.

    All chlorides are soluble in water with the exception of those formed with silver , lead , mercury ions as all halides are soluble.

    Sulphates are soluble in water.

    Hydroxides are not soluble in water.

     

    Hence, copper(II) hydroxide is not soluble in water.

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