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Spin-only magnetic moment of the complex that absorbs the shortest wavelength

This type of question, asked 2 times: 25 Jun 2022, 25 Jul 2022. All 2 questions below, oldest first.

Try each one first, then open its answer.

  1. Question 1

    25 Jun 2022

    147
    Amongst FeCl3.3H2O, K3[Fe(CN)6]FeCl_{3}.3H_{2}O,\ K_{3}\left\lbrack Fe(CN)_{6} \right\rbrack and [Co(NH3)6]Cl3\left\lbrack Co\left( NH_{3} \right)_{6} \right\rbrack Cl_{3}, the spin-only magnetic moment value of the inner-orbital complex that absorbs light at shortest wavelength is ____ B.M. [nearest integer]

  2. Question 2

    25 Jul 2022

    56
    Consider the following metal complexes:
    [Co(NH3)6]3+\left\lbrack Co\left( NH_{3} \right)_{6} \right\rbrack^{3 +}
    [CoCl(NH3)5]2+\left\lbrack CoCl\left( NH_{3} \right)_{5} \right\rbrack^{2 +}
    [Co(CN)6]3−\left\lbrack Co(CN)_{6} \right\rbrack^{3 -}
    [Co(NH3)5(H2O)]3+\left\lbrack Co\left( NH_{3} \right)_{5}\left( H_{2}O \right) \right\rbrack^{3 +}
    The spin-only magnetic moment value of the complex that absorbs light with shortest wavelength is ____ B.M. (Nearest integer)