The spin-only magnetic moment value of Mn+ ion formed among Ni, Zn, Mn and Cu that has the least ent β JEE Mains Chemistry Past Papers Chemistry Question
Question
The spin-only magnetic moment value of Mn+ ion formed among Ni, Zn, Mn and Cu that has the least enthalpy of atomisation is . (in nearest integer) Here n is equal to the number of diamagnetic complexes among K2[NiCl4], [Zn(H2O)6]Cl2, K3[Mn(CN)6] and [Cu(PPh3)3I]
Answer: .
π‘ Solution & Explanation
n = 2 ([Zn(H2O)6]Cl2, [Cu(PPh3)3I]) Zn has least enthalpy of atomisation (fully filled configuration, so lesser electrons take part in metallic bonding). Zn2+ (3d10) ο ο = 0.
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