Van der Waals Forces

Dipole - induced dipole interactions are present between which of the following pairs?

Identify a pair of molecules which shows dipole-induced dipole forces.

Explain briefly the dipole-induced dipole forces among the particles?

Gases do not settle at the bottom of a container. Why?

The increasing order of viscosity of the following compounds is given as 

hexane < ${\mathrm{H}}_2\mathrm{O}$ < glycerol

Which of the following is the correct reason?

Gases expand and occupy all the space available to them. Which of the following assumption explain this behaviour correctly?

Gases show _____ (high/ low) diffusion as compared to solid and liquid.

Name the forces responsible for holding non polar molecules together.

Particles of a matter are held together by:

Define the following terms.

Intermolecular force

How are intermolecular forces and intermolecular spaces related?

How are the molecules in matter held together?

Statement-I. The boiling point of ${\mathrm{NH}}_3$ lies between that of ${\mathrm{SbH}}_3$ and ${\mathrm{BiH}}_3$ .

Statement-2. ${\mathrm{PH}}_3$ has much lower boiling point than ${\mathrm{NH}}_3$ but it increases from ${\mathrm{PH}}_3$ to ${\mathrm{AsH}}_3$ to ${\mathrm{SbH}}_3$ to ${\mathrm{BiH}}_3$ due to increase in van der Waals forces.

Which of the following is false?

Which of the following bonds/forces is the weakest?

Among the following, Van der Waal's forces are the strongest in:

Which one has the highest boiling point? 

The nature of intermolecular forces among benzene $\left({\mathrm{C}}_6{\mathrm{H}}_6\right)$ molecules is :

Intermolecular forces in liquid are

The enthalpy of vaporization of ${\mathrm{H}}_2\mathrm{O}, {\mathrm{C}}_2{\mathrm{H}}_5\mathrm{OH}, \mathrm{and} {\mathrm{CS}}_2 \mathrm{are} 40.6, 38.6, \mathrm{and} 26.8 \mathrm{kJ} {\mathrm{mol}}^{-1}$ respectively. The order of decreasing intermolecular forces in these liquids is,