Polar Molecules

Question 1

What is polarisation ?

Answer 1

Is when the electron cloud around the anion in unequally distributed.

Question 2

What causes an atom to have a greater ability to distort the electron could.

Answer 2

Smaller atoms with a greater nuclear charger have a greater power of attraction and can therefore distort the electron cloud to a greater degree.

Question 3

Can a molecule be polar if it has no polar bonds.

Answer 3

No

Question 4

Can a molecule be nonpolar if it has polar bonds.

Answer 4

Yes

Question 5

What causes a permanent dipole and give an example.

Answer 5

Water has a permanent dipole because the distribution of the electron cloud is unsymmetrical.

Question 6

How can you test the polarity of a liquid.

Answer 6

Place a liquid in a burette and let it run through the burette. Place a charged rod next to the burette.
Polar liquids will be attracted or repelled by the electrostatic attraction while non-polar molecules will be unaffected and will continue to run through the burette.