What is the common name of the compound $CH_2=CH-CHO$?

With reference to the carbonyl group,which statement$(s)$ is/are correct?
$A$. Carbonyl carbon is electrophilic
$B$. Carbonyl carbon is nucleophilic
$C$. Carbonyl oxygen is electrophilic
$D$. Carbonyl oxygen is nucleophilic

Carbonyl compounds are usually

State True or False for the following statements:
$(i)$ Acetone is a propanone and there is an amide group in it.
$(ii)$ Acetone is dimethyl ketone.
$(iii)$ The formula of acetone is $CH_3COCH_3$.
$(iv)$ Acetone possesses a carbonyl group.

Mesityl oxide is a common name of

Give the structures of the following compounds:
$(i)$ $4-$Nitropropiophenone
$(ii)$ $2-$Hydroxycyclopentanecarbaldehyde
$(iii)$ Phenyl acetaldehyde