Which of the following compounds contains a carboxylic acid functional group? (2
Practice Questions
Q1
Which of the following compounds contains a carboxylic acid functional group? (2021)
C2H5OH
C3H6O
C2H4COOH
C4H10
Questions & Step-by-Step Solutions
Which of the following compounds contains a carboxylic acid functional group? (2021)
Step 1: Understand what a carboxylic acid functional group is. It is a group of atoms that includes a carbon atom double-bonded to an oxygen atom and also bonded to a hydroxyl group (-OH). This is often written as -COOH.
Step 2: Look at the compound given, which is C2H4COOH. This means it has 2 carbon atoms, 4 hydrogen atoms, and 1 carboxylic acid group (-COOH).
Step 3: Identify the -COOH part in the formula. Since C2H4COOH has this group, it confirms that it contains a carboxylic acid functional group.
Step 4: Conclude that since C2H4COOH has the -COOH group, it is indeed a carboxylic acid, specifically known as acetic acid.
