Identify a ketone molecule, among the given compounds.

Write the IUPAC name of this compound,

.

The IUPAC name of the following compound is _________

The IUPAC name of the following compound is _________ 

Give the $\mathrm{IUPAC}$ name of 

The $\mathrm{IUPAC}$ name for the following compound is

Name the following organic compound:

The compound with 3 carbon atoms whose functional group is a carboxyl.

Name the following compounds according to IUPAC System of Nomenclature:

(i) ${\mathrm{CH}}_3\mathrm{CH}\left({\mathrm{CH}}_3\right){\mathrm{CH}}_2{\mathrm{CH}}_2\mathrm{CHO}$
(ii) ${\mathrm{CH}}_3\mathrm{CH}\left({\mathrm{CH}}_3\right){\mathrm{CH}}_2\mathrm{C}{\left({\mathrm{CH}}_3\right)}_2{\mathrm{COCH}}_3$

What is the IUPAC name of 'Acrolein'?