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JAMB Chemistry 2014 Question 14

Question 14

Water

On exposure to the atmosphere, a hydrated salt loses its water of crystallization to become anhydrous. This phenomenon is referred to as

  1. A.efflorescence.
  2. B.deliquescence.
  3. C.hygroscopy.
  4. D.hydrolysis.
Show the answer and explanation

Answer: A (efflorescence.)

Explanation

Efflorescent salts (e.g. washing soda) give up their water of crystallization to the air.