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  1. Nitric acid does not react with

    2. A.

     Gold
    B.

     Copper
    C.

     Zinc
    D.

     Iron

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    Answer : Option A

    Explanation :

    Some precious metals, such as pure gold and platinum-group metals do not react with nitric acid, though pure gold does react with aqua regia, a mixture of concentrated nitric acid and hydrochloric acid.

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