Question

Identify the functional group(s) that you would expect to give each result below. a. Water soluble and turns red litmus paper blue. b. Produces a red color upon treatment with CAN. c. Bubbles when exposed to NaHCO3. d. Produces a magenta color when treated sequentially with NaOH, hydroxylamine hydrochloride, HCl, and FeCly. e. A red precipitate is observed upon treatment with 2,4-DNP. f. Heating in a solution of NaOH produces vapors that turn red litmus paper blue. g. Produces a magenta color upon treatment with Schiff's reagent.

Answer 1

a) This test is for hydroxide ions (OH^-)

b) It is an alcoholic hydroxy (-OH) group

c) It is an carboxylic acid (-COOH) group.

d) It is an phenolic hydroxy (-OH) group.

e) It is an carbonyl (-C=O) group

f) It is an amine (-NH₂) group.

g) It is an carbonyl (-C=O) group.

Thank You!