Another name for a urethane is a(n) ________.

A) carbamate ester
B) carbonate ester
C) orthoester
D) aryl diisocyanate
E) carbamic acid

Carboxylic acids can be made from Grignards by treating the Grignard reagents with ________.

A) carbon monoxide
B) esters
C) aldehydes
D) diborane
E) carbon dioxide

The primary structure of a protein refers to ________.

A) the sequence of its amino acids
B) the orientation of α-helices
C) the orientation of pleated sheets
D) the orientation of peptide subunits within a complex protein
E) the placement of the protein's active site

The Hofmann elimination proceeds via a(n) ________ pathway.

A) E2
B) E1
C) S_N1
D) S_N2
E) none of the above