What is the spin-only magnetic moment (in Bohr Magneton units) of $Ni^{2+}$ in an aqueous solution? (Atomic number of $Ni = 28$)
- A$2.84$
- B$4.9$
- C$0$
- D$1.73$
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Which of the following exhibits optical isomerism? $(en = \text{ethylenediamine})$
Medium
View SolutionThe calculated magnetic moments (spin only value) for species $[FeCl_{4}]^{2-}$,$[Co(C_{2}O_{4})_{3}]^{3-}$ and $MnO_{4}^{2-}$ respectively are ..... .
Match List $I$ with List $II$ :
List $I$ (Complex) List $II$ (Type of isomerism) $A$. $[Pt(NH_3)_2Cl_2]$ $I$. Optical $B$. $[Co(en)_3]^{3+}$ $II$. Solvate $C$. $[Co(NH_3)_5NO_2]Cl_2$ $III$. Geometrical $D$. $[Cr(H_2O)_6]Cl_3$ $IV$. Linkage
Choose the correct answer from the options given below :
| List $I$ (Complex) | List $II$ (Type of isomerism) |
| $A$. $[Pt(NH_3)_2Cl_2]$ | $I$. Optical |
| $B$. $[Co(en)_3]^{3+}$ | $II$. Solvate |
| $C$. $[Co(NH_3)_5NO_2]Cl_2$ | $III$. Geometrical |
| $D$. $[Cr(H_2O)_6]Cl_3$ | $IV$. Linkage |
Choose the correct answer from the options given below :
MediumNEET 2026
View SolutionThe magnetic moment of the central metal ion in $K_2MnO_4$ is ........ $B.M.$
Easy
View SolutionHow many geometrical isomers are possible for the complex $[Mab(AB)_2]^{n \pm}$?
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