Question

Which of the following factors influence the Dipole - induced dipole interaction between a electrically neutral molecule and a polar molecule
A. Dipole moment of the permanent dipole
B. Polarizability of the electrically neutral molecule
C. The size of the electrically neutral molecule
D. All of the above

Answer 1

Forces of attraction exist between molecules which are known as intermolecular forces . They can arise due to various interactions . Dipole induced dipole interactions exist between a polar and a non - polar molecule .

Complete step by step answer:
When an electrically neutral molecule is polarized by the presence of a polar molecule near it , it becomes an induced dipole . Interactions between them are then called dipole induced dipole interactions .Their strength can depend upon various factors .
The dipole moment of the permanent dipole , greater the dipole moment more will polarize the neutral molecule .
Polarizability of the electrically neutral molecule as greater the polarizability , more easily it will get polarized .
It also depends on the size of the electrically neutral molecule , bigger molecules will get easily polarized while smaller molecules will not .
For example , when a noble gas like argon is brought close to a polar molecule like $HCl$ then argon will get polarised and become an induced dipole .

So, the correct answer is Option D.

Additional Information:
Ion–dipole and ion–induced dipole forces are almost similar to dipole–dipole and dipole–induced dipole interactions but the difference is that they involve ions, in the place of only polar and nonpolar molecules. In comparison between Ion–dipole and ion–induced dipole and dipole–dipole interactions, dipole-dipole interactions are weaker because the charge of any ion in ion-dipole and ion-induced dipole is much greater than the charge of a dipole moment. Ion–dipole bonding is stronger than hydrogen bonding.

Note: The interaction energy is inversely proportional to the sixth power of distance between the interacting molecules , therefore it may be noted that the interaction energy increases as the interacting particles come close to each other .