Question

The IUPAC name of CH$_3$COOC$_2$H$_5$ is

• A. Methyl propanoate
• B. Ethyl ethanoate
• C. Acetotheane
• D. Ethoxyethane

Hint:

Esters are named based on the alcohol and the acid from which they are derived, with the alkyl group named first followed by the acid component.

Answer 1

The Correct Option is B

Step 1: Understand the structure of the compound.
The given compound is CH$_3$COOC$_2$H$_5$, which is an ester formed by the reaction of acetic acid (CH$_3$COOH) and ethanol (C$_2$H$_5$OH).
Step 2: Analyze the options.
- Methyl propanoate (Option A) is incorrect because the ester is formed from acetic acid and ethanol. - Ethyl ethanoate (Option B) is the correct IUPAC name for CH$_3$COOC$_2$H$_5$, where "ethyl" comes from the ethanol part and "ethanoate" refers to the acetic acid part. - Acetotheane (Option C) is not a valid name. - Ethoxyethane (Option D) refers to an ether, not an ester.
Step 3: Apply to the options.
The correct IUPAC name is (B) Ethyl ethanoate.
Final Answer: \[ \boxed{\text{Ethyl ethanoate}} \]