Derivatives

• A) I

• B) II

• C) III

• D) IV

2. Why is an amide less reactive to nucleophilic acyl substitution than an acid chloride?

• A) Nitrogen is a better leaving group.

• B) Chloride is a better leaving group.

• C) Nitrogen donates more electron density into the carbonyl.

• D) The amide anion is less basic.

• A) methyl 3-methylbutanamide

• B) 5-methylhexanamide

• C) N-methyl 3-methylhexanamide

• D) N-methyl 3-methylbutanamide

• A) 4-fluoro-3-methylbenzoate

• B) 4-fluoro-3-methylbenzoic acid

• C) 3-methyl-4-fluorobenzoic acid

• D) 4-fluoro-5-methylbenzoic acid

• A) I

• B) II

• C) III

• D) IV

• A) I

• B) II

• C) III

• D) IV

• A) I

• B) II

• C) III

• D) IV

• A) 2-fluorobutanonitrile

• B) 2-fluoropentanonitrile

• C) 3-fluoropentanonitrile

• D) 2-fluorobutylcyanide

9. Where is the carbonyl absorption found in the IR spectrum of a simple ester?

• A) 2.5 ppm

• B) 2250 cm-1

• C) 3800 cm-1

• D) 1740 cm-1

10. Which of the following peaks would you see in the IR spectrum of a carboxylic acid?

• A) A flat line (carboxylic acids are not IR active)

• B) A sharp line at 2250 cm-1

• C) A broad peak from 3800-2800 cm-1

• D) A broad peak from 800-600 cm-1