Chapter FRP, Problem 31P

Fluorination of (R)-2-flurobutane yields a mixture of isomers with the formula $C_4{H}_8{F}_2$.

(a) How many diffcrc.nr isomers would you expect to be produced? Write their structures.

(b) If the mixture of $C_4{H}_8{F}_2$ isomers were subjected to fractional distillation, how many fractions would you expect to obtain?

(c) Which of these fractions would be optically active?