Answer each of the following questions dealing with the given alkyl halides
a) Which compound cannot undergo an E1 reaction?
b) Which compound will undergo an E1 reaction to form a tetrasubstituted alkene, but undergoes an E2 reaction to form a trisubstituted alkene?
c) Which compounds cannot undergo an SN2 substitution?
d) Which compound will form a nitrile, R–CN, with S configuration on treatment with KI followed by NaCN (both in polar aprotic solvent)?
e) Which compound will form a nitrile with S configuration on treatment with NaCN in polar aprotic solvent?