with the help of valence bond theory, explain as to why (cof6)power3- is paramagnetic, whereas (co(nh3)6)power3+ is diamagnetic. (atomic number of co=27)
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CoF6 3- is paramagnetic because presence of unpaired electrons (F does not cause pairing of d6 electrons)
sp3d2 hybridisation
Co(NH3)6 3+ diamagnetic because presence of paired electrons.
d2sp3 hybridisation (NH3 cause pairing of d6 electrons)
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