Chemistry, asked by ashishranjanac, 1 year ago

Why BF3 has zero dipole moment whereas NF3 has not?

Answers

Answered by hemanthxmen49

In BF3 central atom atom boron has low electro negativity so bond pair movement is opposite to central atom and 3 bond pair has equal magnitude so charges cancel each other resulting zero dipole movement. Whereas in NF3 due to high electro negativity of N and lone pairs of N bond pair movement is in the direction of central atom but the magnitudes if N-F bonds are not exactly same.. So NF3 doesn't has 0 dipole movement...

Answered by ElegantDoll

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❤.NF3 is apolar molecule with polar bonds.

NF3 has unsymmetrical,three dimensional pyramidal structures,with a lone pair of electron.so the net dipole moment ofNF3 is always positive.

❤.BF3 is a non - polar molecule with polar bonds.

BF3 has symmetrical and trigonal plannar structure,with no lone pair of electrons.

So the net dipole moment of BF3is zero.

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