just take H2O AND CH3CH2OH as example.why say that h2o can form two hydrogen bond per molecule but CH3CH2OH only one.i am confused as both of them also has two lone pairs per molecule,is it true that one hydrogen atom will result in only one hydrogen bond and two hydrogen bond result in two hydrogen bond?
1 answer
http://www.chemguide.co.uk/atoms/bonding/hbond.html