Question

which of the following compounds has an ionic bond? 1. so3 2. hcl 3. nacl 4. co2

Explanation:

Ionic bonds form between a metal and a non - metal. Sodium (Na) in NaCl is a metal and chlorine (Cl) is a non - metal. In SO₃, HCl and CO₂, the bonds are covalent as they are between non - metals.

Answer:

1. NaCl