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      Question

      Ferrous sulphate-heptahydrate contains:

      A 19% iron and 11% sulphur Correct Answer Incorrect Answer
      B 11% iron and 19% sulphur Correct Answer Incorrect Answer
      C 9% iron and 21% sulphur Correct Answer Incorrect Answer
      D 21% iron and 9% Sulphur Correct Answer Incorrect Answer

      Solution

      Ferrous sulphate-heptahydrate contains: 19% iron and 11% sulphur.

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