Q58 / 197 · NEET 2009 (Mains) · Chemistry

Which one of the elements with the following outer orbital configurations may exhibit the largest number of oxidation states ?

  • A
    $3 d^2 4 s^2$
  • B
    $3 \mathrm{~d}^3 4 \mathrm{~s}^2$
  • C
    $3 d^5 4 s^1$
  • Correct answer
    D
    $3 d^5 4 s^2$

Solution

$7^{\text {th }}$ group $\rightarrow$ largest number of oxidation state.

Hence, the correct answer is option: 'D'.

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