Which of the following is an example of an organic chemical compound?

• A. $H_{2}O$ (water)
• B. ${\mathrm{Na}}_2\mathrm{SO}{4}_{\mathrm{}}$ (sodium sulfate)
• C. ${\mathrm{CH}}_3\mathrm{OH}$ (methanol)
• D. ${\mathrm{NaCl}}_{\mathrm{}}$ (sodium chloride)

Answer: (C)

Verified step by step guidance

1. Understand the definition of an organic compound: Organic compounds primarily contain carbon atoms bonded to hydrogen atoms, often along with other elements such as oxygen, nitrogen, sulfur, or halogens.
2. Examine each given compound to identify the presence of carbon-hydrogen (C-H) bonds, which are characteristic of organic compounds.
3. For water (H\_2O), note that it contains hydrogen and oxygen but no carbon atoms, so it is inorganic.
4. For sodium sulfate (Na\_2SO\_4) and sodium chloride (NaCl), recognize that these are ionic salts composed of metal cations and nonmetal anions, with no carbon atoms present, thus inorganic.
5. For methanol (CH\_3OH), observe that it contains a carbon atom bonded to hydrogen atoms and an -OH group, fitting the criteria for an organic compound.