I can't draw these things on the board; I assume you have the structures.
I believe 1 and 3 are conjugated; 2 and 4 are not. Conjugated will be double-single-double bond.
Sort the compounds: conjugated or non conjugated.
-but-2-enoic acid
-butanoic acid
-hex-4-en-3-one
-hexan-3-one
2 answers
It's correct! Thanks