Evaluate the compound shown.

a$)$ Name the indicated functional group

b$)$ Are they hydrophilic or hydrophobic?

c$)$ Are they acidic or basic or neutral?

d$)$ Show the ionized forms of the acidic and basic groups.

e$)$ Which functional groups $($except for the lower right phenyl$)$ can participate in the

following interactions: cation$-$pi$,$ ionic, van der Waals, ion$-$dipole. Some may do more

than one of these.

f$)$ How many chiral centers are there

g$)$ Are geometric isomers possible?

h$)$ Is this compound conformationally rigid?