Question

Among ti4 v2 mn3+ cr3+ which ion is more stable in ab aqueous solution nd why

Answer 1

Hey !

1. Ti4+ = 3d° , V2+ = 3d3 , Mn3+ = 3d4 , Cr3+ = 3d3

out of these ions Cr3+ is most stable due to cystal feild spliting concept. In Cr3+ , t2g in half filled, so extra stable.

2. Mn3+ is strong oxidising agent because Mn3+ can easily be converted into Mn2+ having d5 configuration which is stable half-filled configuration.

Hope this may help you !