Each of the following aldehydes or ketones is known by a common name. Its substitutive IUPAC name

Question:

Each of the following aldehydes or ketones is known by a common name. It’s substitutive IUPAC name is provided in parentheses. Write a structural formula for each one.
(a) Chloral (2, 2, 2-trichloroethanal)
(b) Pivaldehyde (2, 2-dimethylpropanal)
(c) Acrolein (2-propenal)
(d) Crotonaldehyde [(E)-2-butenal]
(e) Citral [(E)-3, 7-dimethyl-2, 6-octadienal]
(f) Diacetone alcohol (4-hydroxy-4-methyl-2-pentanone)
(g) Carvone (5-isopropenyl-2-methyl-2-cyclohexenone)
(h) Biacetyl (2, 3-butanedione)