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

  • question_answer
    Which ion is not coloured [DPMT 2001]

    A) \[C{{r}^{3+}}\]

    B) \[C{{o}^{2+}}\]

    C) \[C{{r}^{2+}}\]

    D) \[C{{u}^{+}}\]

    Correct Answer: D

    Solution :

    \[C{{u}^{+}}\]do not have any unpaired electron.


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