Why the dipole moment of fluoromethane is lower than chloromethane?
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because flourine is more electronegative than chlorine in the given compound
dipole moment = charge x distance between the centre of charges
more the electronegativity more will be the charge on the atoms ..
Now charge is more but due to small size of flourine atoms the distance factor highly decreases
but in case of chlorine both charge and distance factor dominates I.e. distance between the nucluei of both increases and thus it has high dipole moment
dipole moment = charge x distance between the centre of charges
more the electronegativity more will be the charge on the atoms ..
Now charge is more but due to small size of flourine atoms the distance factor highly decreases
but in case of chlorine both charge and distance factor dominates I.e. distance between the nucluei of both increases and thus it has high dipole moment
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