Give the structural formula and the different groups of:

a) 2,3,4-trimethylhexane

b) 4-tert butyloctane

c) 4-methyl-2-heptyne

d) 3-otanone

e) 4-chloro-2-heptene

f) 3-hydroxybutanoic acid

g) 4-isopropyl-2-heptanone

h) 3-methyl-2-butanol

i) 3,3-dimethylbutanal

j) 5-ethyl-4-methyl-2-heptyne

k) 6-fluoro-3-methyl-4-hexanoic acid

l) 1,3-dimethylcyclohexane