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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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