Write the structures and IUPAC names of the following compounds :
(a) Adipic acid (b) `alpha` - methyl butyraldehyde.

Explanation

Structure and IUPAC name of the compounds are :
(a) Adipic acid :
Structure :
`HO-underset(O)underset(||)(C)-CH_(2)-CH_(2)-CH_(2)-CH_(2)-overset(O)overset(||)(C)-OH`
IUPAC name : Hexanedioic acid.
(b) `alpha` - methyl butyraldehyde :
Structure : `CH_(3)-CH_(2)-underset(CH_(3))underset(|)(CH)-CHO`
IUPAC name : 2-methyl butyraldehyde.