Hydrogen molecule differs from chlorine molecule in the following respect:

Options

A. Hydrogen molecule is non-polar but chlorine molecule is polar
B. Hydrogen molecule is polar while chlorine molecule is non-polar
C. Hydrogen molecule can form intermolecular hydrogen bonds but chlorine molecule does not
D. Hydrogen molecule cannot participate in coordination bond formation but chlorine molecule can

Answer

D

Explanation

Hydrogen molecule cannot participate in coordination bond formation but chlorine molecule can because there is no unshared pair of electrons in hydrogen molecule `(H_2)` whereas chlorine molecule has six unshared electron pairs as shown below.
`H-H " " :underset(ddot)overset(ddot)(C)l - underset(ddot)overset(ddot)(C)l:`
Coordinate bond is formed by sharing of an electron pair between the atoms where the shared pair of electrons is contributed by only one of the atom.