Prob 2. Arrange the bonds in order of increasing ionic character in the molecules: LiF, K2O, N2, SO2 and ClF3 Sol. N2 < ClF3 < SO2 < K2O < LiF Mera question is how come the ionic character is higher in SO2 than in ClF3 ?? Both have the same electronegativity difference..??then?? Please thx in advance to all those take pain in answering me GOD BLESS!!!

the key here is that there are 3 F atoms in ClF3 and only two O atoms in SO2.... and as already told you that the difference b/w the electronegativity of F and O is bit high....so definitely ClF3 will be more ionic than SO2....

when you arrange all of them now...

N₂ < SO₂ < ClF₃ < K₂O < LiF

ClF₃ is more ionic than SO_{2 ..}

i think the given solution in the problem you have given is incorrect , maybe a printing mistake , but here is the solution above.

source : it came for my school exam , and i got it right :D