Question

What type of intermolecular force of attraction found in $$ICl$$?
A) Hydrogen bonding
B) Covalent bonding
C) Dipole-Dipole interactions
D) Ionic interactions

Answer 1

Hint: Since atoms create partial positive and negative charges on itself, it is easy to get the dipole-dipole interactions in them due to the electronegativity difference.

Complete step by step answer:
Before solving this question we will look at all the options and study about them in brief:
- Ionic bonding: Bonding between two oppositely charged ions forming an ionic bond.
Example- $$N{a}^{+}+C{l}^{-}\to NaCl$$
Bonding between $$N{a}^{+}$$ and $$C{l}^{-}$$ leads to the formation of $$NaCl$$ that’s an ionic bond.
Covalent bonding- A bond which is involved during the sharing of electrons leads to this type of bonding, as the name suggests the bond so formed is a chemical bond.
Example: $$Cl-Cl$$ Bond between two $$Cl$$ atoms leads to covalent bonding forming $$C{l}_2$$
 chlorine molecule.
- Hydrogen bonding- When hydrogen is electrostatically bonded to an electronegative species, this type of bonding is termed as Hydrogen bonding.
Example: The bonding between two water molecules leads to the formation of hydrogen bonding.
Metallic bonding- Electrostatic attraction between electrons and positively charged metal leads to the formation of Metallic bonds.

In $$ICl$$ molecule, there are both electronegative atoms out of which $$Cl$$ has comparatively more electronegativity than $$I$$ due to which $$Cl$$ will have partial negative charge on it and $$I$$ will bear partial positive charge.
So it is easy to conclude that Dipole-dipole interactions are present between polar molecules having opposite charges on each other.
$$I-Cl------I-Cl$$
Option A) this is an incorrect option as hydrogen bonding involves the presence of hydrogen atoms in them.
Option B) This is an incorrect option as explained above about covalent bonding.
Option C) this is a correct option as $$ICl$$molecules have dipole-dipole interactions.
Option D) this is an incorrect option as explained above about ionic bonding.

Hence, the correct answer is, ‘Option C’

Note: We have to remember that the $$ICl$$ is a polar molecule due to the difference in the electronegativities of the two atoms. We also know that it is an interhalogen compound which is red brown in color.