JEE Main & Advanced Chemistry Classification of Elements and Periodicity in Properties Question Bank Atomic and lonic radii

  • question_answer Which of the following does not represent the correct order of the property indicated [CBSE PMT 1997]

    A) \[S{{c}^{3+}}>C{{r}^{3+}}>F{{e}^{3+}}>M{{n}^{3+}}\] ionic radii

    B) \[Sc<Ti<Cr<Mn\] Density

    C) \[M{{n}^{2+}}>N{{i}^{2+}}<C{{o}^{2+}}<F{{e}^{2+}}\] ionic radii

    D) \[FeO<CaO>MnO>CuO\] Basic nature

    Correct Answer: A

    Solution :

    \[S{{c}^{3+}}>C{{r}^{3+}}>F{{e}^{3+}}>M{{n}^{3+}}\] the correct order is \[C{{r}^{+3}}>M{{n}^{+3}}>F{{e}^{+3}}>S{{c}^{+3}}\]


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