why amminoa has higher dipole momentvthan …
CBSE, JEE, NEET, CUET
Question Bank, Mock Tests, Exam Papers
NCERT Solutions, Sample Papers, Notes, Videos
Posted by Pradiksha Bablu 8 years, 9 months ago
- 1 answers
Test
Related Questions
Posted by Parneet Kaur 1 year, 1 month ago
- 0 answers
Posted by Naman Mehra 1 year, 5 months ago
- 0 answers
Posted by Rihan Mehta 1 year, 6 months ago
- 0 answers
Posted by Shaila Bombe 1 year, 5 months ago
- 1 answers
Posted by "Serai✨ Wallance" 1 year, 5 months ago
- 0 answers
myCBSEguide
Trusted by 1 Crore+ Students
Test Generator
Create papers online. It's FREE.
CUET Mock Tests
75,000+ questions to practice only on myCBSEguide app
Naveen Sharma 8 years, 9 months ago
Ans.
This is due to the fact that dipole moment is a vector quantity and hence resultant dipole moment in a molecule will depend upon the direction of dipole moments of individual bonds.
Nitrogen has a lone pair of electrons and is more electronegative than hydrogen. So, in case of NH3, the orbital moment due to the lone pair of electrons on nitrogen is in the same direction of the 3 N-H dipoles.Thus, the molecule has a net dipole moment and it is polar.
In NF3, fluorine being more electronegative than nitrogen pulls the shared pair of electrons of the N-F bonds towards itself. Because of this, the orbital moment due to lone pair of electrons and the resultant dipole moment of 3 N-F bonds point in the opposite directions to that of lone pair of electrons. This lowers the dipole moment of NF3.
0Thank You