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    Question

    Bluing of rose petal is due

    to:
    A Auxin Correct Answer Incorrect Answer
    B Co_2 Correct Answer Incorrect Answer
    C Accumulation of ammonia Correct Answer Incorrect Answer
    D Ethylene Correct Answer Incorrect Answer

    Solution

    The bluing in red rose petals kept in water or preservative is due to the increase in pH due to accumulation of ammonia.

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