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    Question

    Which compound shows both acidic and basic properties

    (amphoteric)?
    A Ethanol Correct Answer Incorrect Answer
    B Acetone Correct Answer Incorrect Answer
    C Phenol Correct Answer Incorrect Answer
    D Amino acid Correct Answer Incorrect Answer

    Solution

    Amino acids have both тАФNHтВВ (basic group) and тАФCOOH (acidic group), thus they are amphoteric.

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