1edited sorry
1..WHICH IS PARAMAGNETIC---
A. TRIPLET O2
B[.Cu(CN)4]2-
C.[Pt(Cl)4]2-
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8 Answers
39govind, is that complex paramagnetic because there are 2 more electrons(-2 oxidation state of Cu)? jo paired nahi honge..
because otherwise CN is strong field ligand and pairs up electrons...
29@Pritish oxidation state of Cu is +2..Actually the d9 configuration of Cu2+ is an exceptional case..which forms square planar complexes with strong field ligands and one d electron is exited to the pz orbital..so it is paramagnetic..
1Triplet oxygen is the ground state of the oxygen molecule. The electron configuration of the molecule has two unpaired electrons occupying two degenerate molecular orbitals. These orbitals are classified as antibonding, so the O-O bond is weaker than the N-N bond in molecular nitrogen, where all bonding molecular orbitals are filled.
Unpaired electrons in degenerate orbitals can have the same spin, so the total spin S of the molecule is 1. This is known as a triplet configuration because the spin has three possible alignments in an external magnetic field.
Because the molecule has a non-zero spin magnetic moment, oxygen is paramagnetic; i.e., it can be attracted to the poles of a magnet
39Ohhh I didn't notice that govind..LOL I straightaway assumed -2 charge on coordination sphere to be charge on Cu...haha.