The α-carbon atom bonded to the nitrogen of an alkylamine usually appears in what chemical shift (δ) range?

A) 5-20
B) 30-50
C) 80-100
D) 120-150
E) 180-220

Treatment of cyclopentene with peroxybenzoic acid ________.

A) results in oxidative cleavage of the ring to produce an acyclic compound
B) yields a meso epoxide
C) yields an equimolar mixture of enantiomeric epoxides
D) gives the same product as treatment of cyclopentene with OsO₄
E) none of the above

When two carbenes collide, they immediately dimerize to give ________.

A) an alkane
B) an alkene
C) an alkyne
D) an aromatic ring
E) a carbanion

Oleic acid is an example of ________ fatty acid. A molecule of oleic acid contains a single carbon-carbon double bond and ________ carbon atoms.

A) an unsaturated; 18
B) an unsaturated; 9
C) a saturated; 52
D) a saturated; 18
E) a saturated; 9