Question

a seven - carbon carboxylic acid is called which of the following?
select the correct answer below:
butanoic acid
heptanol
heptane
heptanoic acid

Explanation:

• Butanoic acid has 4 carbon atoms.
• Heptanol is an alcohol (ends with -ol), not a carboxylic acid.
• Heptane is a hydrocarbon (no oxygen - containing functional group like carboxylic acid).
• Heptanoic acid: "hept - " indicates 7 carbon atoms, and "-oic acid" is the suffix for carboxylic acids.

Answer:

heptanoic acid