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NEET2024Chemistryd and f Block ElementsActual

'Spin only' magnetic moment is same for which of the following ions? A. Ti ³⁺ B. Cr ²⁺ C. Mn ²⁺ D. Fe ²⁺ E. Sc ³⁺ Choose the most appropriate answer from the options given below.

Options

  1. AA and E only
  2. BB and C only
  3. CA and D only
  4. DB and D only

Correct answer

D. B and D only

Step-by-step solution

array lcc Ions & No. of unpaired electrons & Configuration Ti ³⁺ & 1 & 3 d^1 Cr ²⁺ & 4 & 3 d^4 Mn ²⁺ & 5 & 3 d^5 Fe ²⁺ & 4 & 3 d^6 Sc ³⁺ & 0 & 3 d^0 array Spin only magnetic moment is given by n(n+2) BM Cr ²⁺ and Fe ²⁺ will have same spin only magnetic moment.

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