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Find the total number of ions which for...

Find the total number of ions which form paramagnetic complex irrespective of nature of ligand in octahedral geometry. (C.N. = 6)
`Sc^(+3), Ti^(3=), Cr^(+3), Pt^(+4), Ni^(+2), Co^(+3), Fe^(+3)`

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The correct Answer is:
4
`Cr^(3+),Ni^(2+),Fe^(3+),Ti^(3+)`
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GRB PUBLICATION-COORDINATION COMPOUNDS-SBJECTIVE TYPE
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