explain the dipole moment of NB3 is lower than NH3.

Question

Bejoi Mathew · Answer

WELL THAT IS BECAUSE DIPOLE MOMENT IS A VECTOR QUANTITY AND HENCE RESULTANT DIPOLE MOMENT DEPENDS ON THE DIRECTIONOF INDIVIDUAL DIPOLE MOMENTS. IN NH 3 , NITROGEN IS much MORE ELECTRONEGATIVE(that they have greater electronegativity difference) THAN HYDROGEN SO THE EFFECTIVE DIPOLE MOMENT IS SAME AS THE DIRECTION IN WHICH THE 3 N-H DIPOLES. IN NB3, NITROGEN IS AGAIN MORE ELECTRONEGATIVE BUT THE ELECTRONEGATIVITY DIFFERENCE IS LESS, hence the dipole moment would also be less because p = q * d HOPE THIS HELPS! THANK YOU

Umakant biswal · Answer

@ mintu
below arethe reasons
1- both molecules are pyramidal in shape with aloan pairof electron in nitrogen atom ..
2- the orbital dipole moment due to loan pair is in the same direction , as the resultant dipolemoment of the bonds .
3- thirdly , the most electronegativity power of nitrogen will comes into play .
HOPE IT CLEARS YOUR DOUBT
ALL THE BEST ..

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explain the dipole moment of NB3 is lower than NH3.

explain the dipole moment of NB3 is lower than NH3.

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