MCQ
$\pi-$ acid ligands are
- A$CO$
- B$CN^-$
- C$N{O^ \oplus }$
- ✓All of these
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$P =\left[ FeF _6\right]^{3-}, Q =\left[ V \left( H _2 O \right)_6\right]^{2+} \text { and } R =\left[ Fe \left( H _2 O \right)_6\right]^{2+} \text {. }$
The correct order of the complex ions, according to their spin-only magnetic moment values (in $B.M.$) is
$\left.\left. K _3\left[ Fe ( CN )_6\right]( K ),\left[ Co \left( NH _3\right)_6\right] Cl _3( L ), Na _3[ Co \text { (oxalate })_3\right]( M ),\left[ Ni _2 H _2 O \right)_6\right] Cl _2( N ) \text {, }$ $K _2\left[ Pt ( CN )_4\right]( O ) \text { and }\left[ Zn \left( H _2 O \right)_6\right]\left( NO _3\right)_2( P ) $ the diamagnetic complexes are
Assume Planck's constant $( h )=6.4 \times 10^{-34}\,Js$ Speed of light $( c )=3.0 \times 10^8\,m / s$ and Avogadro's constant $\left( N _{ A }\right)=6 \times 10^{23} / mol$