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    Question

    For each unit increase in pH the activity of

    Fe3+ decreases by:
    A 10 folds Correct Answer Incorrect Answer
    B 100 folds Correct Answer Incorrect Answer
    C 1000 folds Correct Answer Incorrect Answer
    D 50 folds Correct Answer Incorrect Answer
    E 200 folds Correct Answer Incorrect Answer

    Solution

    For each unit increase in pH the activities of Fe3+ and Fe2+ decrease by 1000 fold and 100 fold respectively.

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