Increasing strength of hydrogen bonding (X – H - H) : O, S, F, Cl, N SOL: Cl < S < N < O < F how is this possible someone pls explain it for me hurry aieee approaching !!!

order of electronegativity = F>O>N>Cl>S

for better hydrogen bonding , electronegativity shoud be high &

size of atom should be small...

Florine will give max hydrogen bonding > then oxygen >  then nitrogen here electronegativity difference is important parameter , size dosent playes any role coz all are having approximately same size ..

but in case of Cl & S as size of Cl is very large  compared to S so ,  sulphur will form more effective hydrogen bonding that chlorine...    (small size better hydrogen bond)

Approved