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Thursday, October 8, 2020

Why dipole moment of H2O greater thna F2O ?

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Let’s draw the structure of both two compounds and then analyses it.
                                
In both H2O and F2O the structure is quite the same. In H2O as O is more electronegative than hydrogen so the resultant bond dipole is towards O, which means both the lone pair and bond pair dipole are acting in the same direction and dipole moment of H2O is high. In case of F2O the bond dipole is acting towards fluorine, so in F2O the lone pair and bond pair dipole are acting in opposition resulting in a low dipole


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