Question

For each polar molecule, choose the molecule and indicate the positive and negative ends of the dipole moment. Part A: CO CEO CEO nonpolar Part B: 02 6+6- O=0 8+S- 0=0 nonpolar Part C: F2 6+6- F-F 6+6- F-F nonpolar Part D: HBO 6+6- H-Br 6-6+ H-B nonpolar

Answer 1

The polarity in a molecule is produced due to difference in electronegativity between bonded atoms. As we know electronegativity is the ability of an atom to pull the shared pair of electron towards itself. In the process electron density is more on more electronegative atom hence there is a partial negative charge and electron density is less on less electronegative atom hence there is partial positive charge on it. Now let's look at the question here.

PART-A Polar molecule oxygen is more electronegative than carbon. PART-B o=0 Non-polar molecule Both are oxygen atoms so no difference in electronegativity PART-C No differce in 7 - F- E Non-polar Celectronegativity PART-D St S- - H-Br Polar molecule Br is more électro-ve than H.