The IUPAC name of crotonaldehyde is

Options

A. Prop-2-en-1-al
B. Propenal
C. But-2-en-1-al
D. Butenal

Answer

C

Explanation

`underset("But-2-en-1-al")(underset(4)(CH_(3)) - underset(3)(CH) = underset(2)(CH) - underset(1)(CHO))`