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    Given below are two statements Statement I: Al (OH)₂⁺ ion is predominant in soil between pH 4.7 & 6.5. Statement II: Al³⁺ ion is pre
    Question

    Given below are two statements
    Statement I: Al (OH)₂⁺ ion is predominant in soil between pH 4.7 & 6.5.
    Statement II: Al³⁺ ion is predominant in soil pH below 4.7.
    In light of the above statements, choose the correct answer from the options given below

    A.

    Both Statement I and Statement II are true

    B.

    Both Statement I and Statement II are false

    C.

    Statement I is true, but Statement II is false

    D.

    Statement I is false, but Statement II is true

    Correct option is A


    Aluminum exists in different forms depending on soil pH. Between 4.7 and 6.5, the hydrolyzed form Al(OH)₂⁺ predominates. Below pH 4.7, free Al³⁺ ions dominate, which are toxic to plant roots. Hence, both statements are scientifically correct based on soil chemistry principles.

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