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

  • question_answer
    In first transition series, the melting point of \[Mn\] is low because [MP PMT/PET 1988]

    A) Due to \[{{d}^{10}}\] configuration, metallic bonds are strong

    B) Due to \[{{d}^{7}}\] configuration, metallic bonds are weak

    C) Due to \[{{d}^{5}}\] configuration, metallic bonds are weak

    D) None of these

    Correct Answer: C

    Solution :

    Due to \[{{d}^{5}}\] configuration, metallic bonds are weak. \[{{d}^{5}}\] Orbital is half filled as a result \[3d\] electrons are more tightly held by the nucleus and this reduces the de-localization of electrons resulting in weaker metallic bonding.


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