Story
NEET AITS
Story
Mock Tests
Story
Live Class
Story
JEE AITS

Questions  

Which of the following compounds possesses zero dipole moment?

Unlock the full solution & master the concept.

Get a detailed solution and exclusive access to our masterclass to ensure you never miss a concept
By Expert Faculty of Sri Chaitanya
a
Water
b
Benzene
c
Carbon tetrachloride
d
Boron trifluoride

Ready to Test Your Skills?

Check Your Performance Today with our Free Mock Tests used by Toppers!

detailed solution

Correct option is B

  • Carbon tetrachloride molecule has zero dipole moment even though C and Cl have different electronegativities and each of the C - Cl bond is polar and has some dipole moment. 
  • This is because, the individual dipole moments cancel out because of the symmetrical tetrahedral shape of the molecule.
  • In benzenes molecule carbon and hydrogen have distinct electronegativities, so it has the symmetrical planar structure. 
  • It has six C-H bonds or six dipole moments, that cancel out another one, and therefore the net dipole moment is zero.
  • The zero dipole moment of BF3 is because of its symmetrical (triangular planar) structure. 
  • The three fluorine atoms lie at the corners of an equilateral triangle with a boron at the center. 
  • BF3 molecule is formed by bonding between three sp2 orbitals of B and p orbital of 3 F atoms.
difficult
ctaimg

Want to Improve your productivity
talk to our academic experts now !!

counselling
india
+91

whats app icon