Molecule possesing dipole moment is : a)CH4 , b)H2O , c)BF3 , d)CO2 - Chemistry - Chemical Bonding and Molecular Structure

Question

Molecule possesing dipole moment is : a)CH4 , b)H2O , c)BF3 ,
d)CO2 ?

Mohit Gupta · Accepted Answer

The molecule possessing dipole moment is water as it is present
in tetrahedral geometry where 2 sites are occupied by lone pair and
other two are by Hydrogen atom The total dipole moment is the
vector sum of all bond dipole moment which in case of water come
out to be 1 85 D <img alt="" src=
"https://s3mn%20mnimgs%20com/img/shared/discuss_editlive/5769756/2013_11_18_17_23_42/image3738901559271253306_6847687838694116095%20jpg">
However, in all other cases the bond dipole moment is cancelled
out by other bond dipole moment and hence the vector sum come out
to be zero

Molecule possesing dipole moment is : a)CH4 , b)H2O , c)BF3 , d)CO2 ?