Final answer:
A molecule with a single covalent bond is Cl₂ (C) option, as it is comprised of two chlorine atoms sharing one pair of electrons.
Step-by-step explanation:
The question is asking to identify a molecule with a single covalent bond from the given options. A single covalent bond is formed when two atoms are sharing one pair of electrons. Looking at the options provided:
- A) N₂ has a triple bond (N=N), where each nitrogen shares three pairs of electrons.
- B) CO₂ has two double bonds (O=C=O), with each oxygen atom sharing two pairs of electrons with carbon.
- C) Cl₂ has a single bond (Cl-Cl), where two chlorine atoms share one pair of electrons.
- D) CO has a triple bond (C=O).
The correct answer is C) Cl₂, as it is a molecule where two chlorine atoms are connected by a single covalent bond.