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Coordination Compounds

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Q JEE MAIN 2025
The calculated spin-only magnetic moments of $\mathrm{K}_{3}\left[\mathrm{Fe}(\mathrm{OH})_{6}\right]$ and $\mathrm{K}_{4}\left[\mathrm{Fe}(\mathrm{OH})_{6}\right]$ respectively are :
JEE Main Chemistry Hard
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Q JEE MAIN 2025
Identify the homoleptic complexes with odd number of d electrons in the central metal :[0pt] [JEE MAIN\_290125\_S2] [Coordination] [T-5] [Ea\$y] (A) $\left[\mathrm{FeO}_{4}\right]^{2-}$ (B) $\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{-3-}$...
JEE Main Chemistry Easy
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Q JEE MAIN 2025
The number of paramagnetic complexes among ${\left[ {{\rm{Fe}}{{\rm{F}}_6}} \right]^{3-}},{\left[ {{\rm{Fe}}{{({\rm{CN}})}_6}} \right]^{3-}},{\left[ {{\rm{Mn}}{{({\rm{CN}})}_6}} \right]^{3 - }}$, ${\left[ {{\rm{Co}}{{\left( {{{\rm{C}}_2}{{\rm{O}}_4}} \right)}_3}} \right]^{3-}},{\left[ {{\rm{MnC}}{{\rm{l}}_6}} \right]^{3 - }}$, and...
JEE Main Chemistry Medium
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Q JEE MAIN 2025
An octahedral complex having molecular composition ${\rm{Co}}.5{\rm{N}}{{\rm{H}}_3} \cdot {\rm{C}}{{\rm{l}}^2}.{\rm{S}}{{\rm{O}}_4}$ has two isomers A and B. The solution of A gives a white precipitate with ${\rm{AgN}}{{\rm{O}}_3}$...
JEE Main Chemistry Easy
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Q JEE MAIN 2025
Which one of the following complexes will have ${\Delta _0} = 0$ and $\mu = 5.96$ B.M?
JEE Main Chemistry Easy
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Q JEE MAIN 2025
Number of stereoisomers possible for the complexes, $\left[ {{\rm{CrC}}{{\rm{l}}_3}{{({\rm{py}})}_3}} \right]$ and ${\left[ {{\rm{CrC}}{{\rm{l}}_2}{{({\rm{ox}})}_2}} \right]^{3 - }}$ are respectively (py = pyridine, ox = oxalate)
JEE Main Chemistry Medium
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Q JEE MAIN 2025
Total number of molecules/species from following which will be paramagnetic is $\mathrm{O}_{2}, \mathrm{O}_{2}^{+}, \mathrm{O}_{2}^{-}, \mathrm{NO}, \mathrm{NO}_{2}, \mathrm{CO}, \mathrm{K}_{2}\left[\mathrm{NiCl}_{4}\right],\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{6}\right] \mathrm{Cl}_{3}, \mathrm{~K}_{2}\left[\mathrm{Ni}(\mathrm{CN})_{4}\right]$
JEE Main Physics Easy
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Q JEE MAIN 2025
The spin only magnetic moment $(\mu)$ value (B.M.) of the compound with strongest oxidising power among $\mathrm{Mn}_{2} \mathrm{O}_{3}$, TiO and VO is $\_\_\_\_$ B.M. (Nearest...
JEE Main Physics Easy
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Q JEE MAIN 2025
Match List - I with List - II.[0pt] Choose the correct answer from the options given below :
JEE Main Chemistry Easy
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