Dipole-Dipole Forces

Question 1

Define dipole-dipole forces

Answer 1

Forces of attraction between the negative pole of one polar molecule and the positive pole of another polar molecule

Question 2

What causes dipole-dipole forces?

Answer 2

They are caused by the partially negative end of one molecule attracting the partially positive end of a neighbouring molecule

Question 3

Do dipole-dipole forces occur between non-polar molecules?

Answer 3

No

Question 4

Between what type of molecules do dipole-dipole forces occur?

Answer 4

They occur between polar molecules

Question 5

Which is stronger dipole-dipole forces of van der Waals forces?

Answer 5

Dipole-dipole forces

Question 6

Which is stronger dipole-dipole forces of ionic bonds?

Answer 6

Ionic bonds

Question 7

Why are dipole-dipole forces weaker than ionic bonds?

Answer 7

Because dipole-dipole forces are between partial electrical charges (sigma+ and sigma-)

Question 8

How do dipole-dipole forces affect boiling points of molecules?

Answer 8

Dipole-dipole forces between molecules give rise to higher boiling points

Question 9

Which have higher boiling points, polar or non-polar molecules?

Answer 9

Polar molecules due to the presence of dipole-dipole forces