Why does NH३ form hydrogen bond but PH३ does not?
Explanation For the formation of hydrogen bonding, there are some essential conditions which need to be fulfilled. These conditions are as follows: The hydrogen atom should be bonded to a highly electronegative atom such as fluorine, nitrogen or oxygen through a covalent bond. This electronegative element makes the hydrogen highly electropositive. This electropositive hydrogen forms hydrogen bond with another highly electronegative element such as fluorine, nitrogen or oxygen. Since in , the hydrogen atoms are bonded covalently to phosphorous which is not an electronegative element, does not form hydrogen bonds.
