The F is more electronegative than H , however the resultant dipole moment of NH3 is much greater than that of NF3 . This can be explained as

Question

The F is more electronegative than H , however the resultant dipole moment of NH3 is much greater than that of NF3 . This can be explained as <img class="img-fluid question-image" alt="Question" src="https://cdn.tardigrade.in/q/nta/c-xfln8uipxioyo3p7.jpg" /> (A) The lone pair of nitrogen opposes the dipole moment of NF3 while it is added to the dipole moment of NH3 . (B) All the dipoles of NF3 are in same direction. (C) All the dipoles of NH3 are in opposite direction. (D) NH3 has a regular geometry while N F3 has irregular geometry which makes dipole moment of NH3 more than NF3 .

Tardigrade Admin · Accepted Answer

Dipole moment =4.90× 10- 30Cm Dipole moment =0.80× 10- 30Cm

Q. The $F$ is more electronegative than $H$ , however the resultant dipole moment of $N H_{3}$ is much greater than that of $N F_{3}$ . This can be explained as

The lone pair of nitrogen opposes the dipole moment of $N F_{3}$ while it is added to the dipole moment of $N H_{3}$ .

All the dipoles of $N F_{3}$ are in same direction.

All the dipoles of $N H_{3}$ are in opposite direction.

$N H_{3}$ has a regular geometry while $N F_{3}$ has irregular geometry which makes dipole moment of $N H_{3}$ more than $N F_{3}$ .

Dipole moment $= 4.90 \times 1 0^{- 30} C m$ Dipole moment $= 0.80 \times 1 0^{- 30} C m$

Q. The F is more electronegative than H , however the resultant dipole moment of NH3​ is much greater than that of NF3​ . This can be explained as

The lone pair of nitrogen opposes the dipole moment of NF3​ while it is added to the dipole moment of NH3​ .

All the dipoles of NF3​ are in same direction.

All the dipoles of NH3​ are in opposite direction.

NH3​ has a regular geometry while NF3​ has irregular geometry which makes dipole moment of NH3​ more than NF3​ .