Question

question 8 of 30 which functional group has the general formula —coo—? a. ester b. ether c. carboxylic acid d. amine

Explanation:

To determine the functional group with the general formula \(-\text{COO}-\), we analyze each option:

• Option A: Esters have the functional group \(-\text{COO}-\) (formed from a carboxylic acid and an alcohol, with the general formula \(\text{RCOOR}'\), where the \(-\text{COO}-\) linkage is present).
• Option B: Ethers have the functional group \(-\text{O}-\) (general formula \(\text{ROR}'\)), not \(-\text{COO}-\).
• Option C: Carboxylic acids have the functional group \(-\text{COOH}\) (or \(-\text{CO}_2\text{H}\)), not \(-\text{COO}-\).
• Option D: Amines have the functional group \(-\text{NH}_2\), \(-\text{NHR}\), or \(-\text{NR}_2\) (where \(R\) is an alkyl group), not \(-\text{COO}-\).

Answer:

A. Ester