Test 4

Which of the following is not represented? 
A. aliphatic amine
B.  heterocyclic aromatic amine
C. aromatic amine
D.  a pyridine ring
E. secondary amine

Which of the following statements is false concerning the Hofmann elimination?
A. It proceeds via an E2 mechanism.
B. It preferentially forms the less substituted alkene.
C. It requires a quaternary ammonium salt.
D. It is a stereospecific reaction.
E. It is a b-elimination reaction.

Which is the least basic?

Which statement explains why ethanol has a higher boiling point than ethanamine?
A. Ethanamine is more polar than ethanol.
B. Ethanol is more stable than ethanamine.
C. Ethanol has more surface area than ethanamine.
D. Ethanol forms stronger hydrogen bonds than ethanamine.
E. Ethanol is heavier than ethanamine.

Arrange from strongest --> weakest base

Which is true?
A. Both A and B are aromatic.
B. Both A and B are aliphatic amines.
C. A is more basic than B.
D. B is more basic than A.
E. Both A and B are planar molecules.

What cannot be made from an arenediazonium salt?
A. Be-H
B. Be-OH
C. Be-F
D. Be-Be
E. Be-CN

Which is true?
A. A is more basic than B.
B. Only one molecule is an amine.
C. B is more polar than A.
D. All of these statements are true
E. Both are aromatic.

Which of the following is most basic in water?
A. aniline
B. ammonia
C. pyrrole
D. methylamine

Which of the following is most basic?
A. 4-nitroaniline
B. 4-methylaniline
C. aniline
D. 4-methoxyaniline

Which of the following is not an intermediate in the Hofmann rearrangement of octanamide to give heptanamine (i.e., treatment of octanamide with NaOH, Br2, H2O)?
A. C7H15CONH-
B. N-bromoamide, C7H15CONHBr
C. imide, C7H15-CONHCO-C7H15
D. isocyanate, C7H15-N=C=O