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Chemistry · Oct / Nov 2023 · Paper 12 · Question 21

5070Preparation of salts

Which definition of a hydrated substance is correct?

  1. AA hydrated substance is a soluble ionic compound such as barium sulfate.
  2. BA hydrated substance is an ionic compound that contains no water.
  3. CA hydrated substance is one that is chemically combined with hydrogen.
  4. DA hydrated substance is one that is chemically combined with water.

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Correct answer: D. A hydrated substance is one that is chemically combined with water.

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