A. Cl2
B. H2
C. HCl
D. O2
Answer: HCl
A. Cl2
B. H2
C. HCl
D. O2
Answer: HCl
Additional Information: Hydrochloric acid (HCl) has a polar covalent bond due to the difference in electronegativity between hydrogen and chlorine.
Subjects: Chemical Bonding, Chemistry