Question

The magnitude of intermolecular forces of attraction are maximum in?
a.Chalk power
b.Water
c.Carbon dioxide
d.Hydrogen

Answer 1

All that you must know the concept of the intermolecular force of attraction as the forces which mediate the interaction between molecules, which includes forces of attraction or repulsion which act between atoms and other types of neighbouring particles is known as the intermolecular force or secondary force. e.g. atoms or ions.
In this, we can see in which the maximum magnitude of the intermolecular force of attraction is present in the given option and also the reason.

Complete answer:
To interrogate the magnitude of intermolecular force. chalk powder, $CaC{O_3}$, in the substance listed those undoubtedly have the highest melting point also, they are not intermolecular force this reflects interparticle. $C{a^{2 + }}$ ions, and $C{O_3}^{_{^{2 - }}}$ ions are the calcium carbonate consist of an infinite array and since this material is in no wise molecular... we may also scratch it from the running. The room temperature gases are carbon dioxide and hydrogen both also, this is attested by their volatility and that their intermolecular interaction is negligible.
On the other hand, with intermolecular hydrogen-bonding as the dominant intermolecular force, the water is a molecular species that gives rise to an exceptionally high normal boiling point.

So the best option is to choose is option B.

Additional information:
Chalk powder:
As a composition: calcium carbonate is the form of chalk, as the ground calcium carbonate, it is having the same chemical composition, limestone, marble, and precipitated calcium carbonate which is known as PPC. They all have the same crystal form known as calcite.
Water:
As the Water has a strong hydrogen bond that is dipole-dipole intermolecular forces which that give water high surface tension and high heat of vaporization and also, that make it a strong solvent
Carbon dioxide:
Carbon Dioxide $\left( {C{O_2}} \right)$ has covalent bonds and dispersion forces. ... Thus, although $C{O_2}$ has polar bonds, it is a nonpolar molecule. Therefore, the London dispersion force is the only intermolecular force.
Hydrogen:
It shows dipole-dipole interaction that occurs when a hydrogen atom is bonded to either an oxygen, nitrogen or fluorine atom.

Note:
The forces of attraction or repulsion between neighboring particles like atoms is known as the intermolecular force. Intramolecular forces are weak as compared to the covalent or ionic bonds between atoms in a molecule.