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JAMB Chemistry 1993 Question 16

Question 16

Water

Water can be identified by the use of

  1. A.anhydrous copper (II) tetraoxosulphate (VI)
  2. B.anhydrous sodium trioxocarbonate (IV)
  3. C.potassium heptaoxochromate (VII)
  4. D.copper (II) trioxocarbonate (IV)
Show the answer and explanation

Answer: A (anhydrous copper (II) tetraoxosulphate (VI))

Explanation

White anhydrous copper(II) sulphate turns blue when water is added, which is the standard test for water.