Why?

ncert question hai.....pahli baar kitab kholi hai....[3]

Cobalt(II) is stable in awueous soln but in presence of complexing
reagents,it is completely oxidised.why??

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3 Answers

24
eureka123 ·

chalo rehna do...........yaad aa gaya..........

106
Asish Mahapatra ·

reason?

29
govind ·

H2O is a weak field ligand so it will form outer spin complex..
but in presence of strong field ligand Co2+ may oxidise to Co3+ and form low spin complex ..as Co2+ cannot form low spin complex

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