Magnetic moment $2.83\, BM$ is given by which of the following ions ?

(At. nos. $Ti = 22,\,Cr = 24,$ $ Mn = 25,\,Ni = 28$)

  • [NEET 2014]
  • A

    $Ti^{3+}$

  • B

    $Ni^{2+}$

  • C

    $Cr^{3+}$

  • D

    $Mn^{2+}$

Similar Questions

$MnO _4^{-}$oxidises $(i)$ oxalate ion in acidic medium at $333\, K$ and $(ii)$ $HCl$. For balanced chemical equations, the ratios $\left[ MnO _4^{-}: C _2 O _4^{2-}\right]$ in $(i)$ and $\left[ MnO _4^{-}: HCl \right]$ in $(ii)$ respectively are

  • [KVPY 2011]

The highest magnetic moment is shown by the transition metal ion with the outer electronic configuration

Among $\mathrm{VO}_2^{+}, \mathrm{MnO}_4^{-}$and $\mathrm{Cr}_2 \mathrm{O}_7^{2-}$, the spin-only magnetic moment value of the species with least oxidising ability is...................$BM$ (Nearest integer).

(Given atomic member $\mathrm{V}=23, \mathrm{Mn}=25, \mathrm{Cr}=24$ )

  • [JEE MAIN 2024]

Which of the following pairs involves isoelectronic ions

Although $\mathrm{Cr}^{3+}$ and $\mathrm{Co}^{2+}$ ions have same number of unpaired electrons but the magnetic moment of $\mathrm{Cr}^{3+}$ is $3.87$ $B.M.$ and that of $\mathrm{Co}^{2+}$ is $4.87$ $B.M.$ Why ?