In carbonyl condensation reactions,
a. the carbonyl group acts as an electrophile.
b. the carbonyl group acts as a nucleophile.
c. the carbonyl group acts as both an electrophile and a nucleophile.
d. the carbonyl group acts as neither an electrophile nor a nucleophile.
Question 2
Which of the following would best represent the form of ethylamine (pKa) at physiological pH?
a. CH3CH2NH3+
b. CH3CH2NH2
c. CH3CH2NH
d. a combination of a and b
Question 3
At which pH will a solution of a 0.00050 M solution of aniline (pKa = 4.63) contain the greatest amount of the neutral species?
a. 2.74
b. 4.63
c. 7.31
d. 9.90