An aqueous solution of potash alum gives .......

On what factors does the magnitude of London dispersion forces depend?

Diamond is extremely hard whereas graphite is soft. This is because

What is the cause of metallic luster?

Carbon dioxide is a gas,whereas silica is a solid because ...........

What is the dependence of interaction energy on the distance $(r)$ between molecules for the following forces?
$(i)$ London forces
$(ii)$ Dipole-dipole forces (stationary)
$(iii)$ Dipole-induced dipole forces