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    Question

    Which will form amphoteric oxide?

    A.

    Zn

    B.

    Na

    C.

    Ca

    D.

    Al

    Correct option is D


    Aluminum (Al) forms amphoteric oxides, which means that these oxides can react with both acids and bases to form salts and water. The most common amphoteric oxide of aluminum is aluminum oxide (Al₂O₃). It can react with hydrochloric acid (HCl) to form aluminum chloride (AlCl₃) and water, and with sodium hydroxide (NaOH) to form

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