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    Question

    What value of RSC (Residual Sodium Carbonate) is

    unsuitable for irrigation?
    A < 1.25 me L-1 Correct Answer Incorrect Answer
    B 1.25 – 2.5 me L-1 Correct Answer Incorrect Answer
    C >2.5 me L-1 Correct Answer Incorrect Answer
    D 1.5-3.5 me L-1 Correct Answer Incorrect Answer
    E >3.5 me L-1 Correct Answer Incorrect Answer

    Solution

    Residual Sodium Carbonate value more than 2.5 me L-1is unsuitable for irrigation.

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