What Do H₂O, NaCl, CO₂, and HCl All Have in Common

Question

What do H2O, NaCl, CO2, and HCl all have in common?
A)All are salts.
B)All are acids.
C)All are gases.
D)All are inorganic.
E)All are solutes.

Accepted Answer

All the compounds listed, including the chemical formulas with subscript notation (H₂O and CO₂ which seem to be incorrectly formatted chemical formulas), NaCl (sodium chloride), and HCl (hydrochloric acid), are inorganic. This means they do not contain carbon-hydrogen bonds as a primary component, which is a characteristic of organic compounds.