Interparticle Interactions

Question 1

What are London dispersion forces?

Answer 1

These are weak forces and temporary interactions between molecules caused by random shifts in electron clouds, occurring in all molecules.
Footnote: These forces are significant in non-polar molecules.

Question 2

What are dipole-dipole interactions? How do they affect molecular properties?

Answer 2

Dipole-dipole interactions occur between polar molecules where the positive end of one dipole is attracted to the negative end of another.
Footnote: These interactions affect properties such as boiling and melting points.

Question 3

Dipole-induced dipole forces occur when a _______ molecule induces temporary dipole in a non-polar molecule by distorting its electron cloud.

Answer 3

Polar

Question 4

What is hydrogen bonding?

Answer 4

Hydrogen bonding is a strong type of dipole-dipole interaction, occurring between a hydrogen atom and a highly electronegative atom such as oxygen, fluorine or nitrogen.

Question 5

Why hydrogen bonding is important in biological system?

Answer 5

Hydrogen bonding is crucial in stabilizing the structures like DNA and proteins in biological systems.