JCECE Engineering JCECE Engineering Solved Paper-2006

  • question_answer
    Which of the following is colour red?

    A) \[C{{u}_{2}}O\]                

    B) \[CuF\]

    C) \[Zn{{F}_{2}}\]                 

    D)  \[ZnC{{l}_{2}}\]

    Correct Answer: A

    Solution :

    Most of the cuprous compounds are usually colourless and diamagnetic as \[3d\] orbital is completely filled \[(C{{u}^{2+}}\xrightarrow{{}}3{{d}^{10}})\cdot C{{u}_{2}}O\] is exception and red in colour.


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