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JEE Main & Advanced Chemistry The d-and f-Block Elements / d तथा f ब्लॉक के तत्व Question Bank Critical Thinking

  • question_answer
    Which of the following is not an element [DCE 2001]

    A) Graphite

    B) Diamond

    C) 22-carat gold

    D) Rhombic sulphur

    Correct Answer: C

    Solution :

    22 carat gold is alloy of copper and gold.


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