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AP EAMCET202119 Aug 2021Evening ShiftChemistryd and f Block ElementsActual

The magnetic moment of Fe 2 + is B . M .

Options

  1. A3.87
  2. B0
  3. C4 . 9
  4. D1 . 73

Correct answer

C. 4 . 9

Step-by-step solution

We know μ   =   n n + 2 where, n is the number of unpaired electrons The electronic configuration of Fe 2 +   =   Ar 3 d 6 4 s 0 According to the Aufbau's principal the unpaired electrons present in Fe 2 + is 4 Thus, μ     =   4 × 6   B . M . μ =   4 . 9   B . M .

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