name the following structure

Question

CH3CH2CH2CH(double bond oxygen)

CH3CH2CH2C(double bond oxygen)CH2CH2CH2CH3

Answer 1

CH3CH2CH2CH=O is an aldehyde with 4 carbons. Name would be butyraldehyde

CH3CH2CH2C=OCH2CH2CH2CH3 is a ketone with a 3 carbon chain on one side and a 4 carbon chain on the other side. Name = 4-octanone or butyl-propyl ketone.