Question

    Which substance is used to dissolve noble metals?

    A Nitric acid Correct Answer Incorrect Answer
    B Hydrochloric acid Correct Answer Incorrect Answer
    C Sulfuric acid Correct Answer Incorrect Answer
    D Aqua regia Correct Answer Incorrect Answer

    Solution

    Aqua regia, a mixture of nitric acid and hydrochloric acid, is used to dissolve noble metals like gold and platinum.

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