IUPAC name is

Options

A. 2, 4-butan-di-one
B. Ethanoic anhydride
C. Ethoxy ethanone
D. Acetic anhydride

Answer

B

Explanation

`CH_(3) - underset(O)overset(||)C - O - underset(O)underset(||)C - CH_(3)`
Ethanoicanhydride.
This is an anhydride of 2 molecules of ethanoic acid.