4. Name the following compounds (1 point): (a) (0.5 points) ri (b) (0.5 points) B: NH, ta 5. Draw the structures of the following compounds. Please make sure to show all the lone pairs (1 point): (a) (cis)-S-chloro-6-fluoro-5,6-dimethyloct-2-ene (0.25 points) (b) 4,4-dimethylcyclohex-2-en-1-one (0.25 points) () (trans)-4,5-dichloro-6,6-dimethylhept-4-en-2-one (0.25 points) (d) 2-ethylpentan-1-amine (0.25 points)