(A) I only
(B) II only
(C) I and III only
(D) II and III only
12 . Which of the following best describes the final product of an aldol condensation?(A) 1,3-dicarbonyl
(B) 1,2-dicarbonyl
(C) α,β-unsaturated carbonyl
(D) β,γ-unsaturated carbonyl
13 . When benzaldehyde is reacted with acetone, which will act as the nucleophile?(A) Benzaldehyde, after addition of strong acid
(B) Benzaldehyde, after reaction with strong base
(C) Acetone, after addition of strong acid
(D) Acetone, after reaction with strong base
14 . 3-hydroxybutanal can be formed by the reaction of:(A) methanol in diethyl ether.
(B) ethanal in base, then in acid.
(C) butanal in strong acid.
(D) methanal and ethanal in catalytic base.
15 . The catalytic production of dihydroxyacetone and glyceraldehyde 3-phosphate (2-
hydroxy-3-oxopropyl dihydrogen phosphate) from fructose-1,6-bisphosphate
({[(2S,3S,4S,5R)-3,4-dihydroxy-5-[(phosphonooxy)methyl]oxolan-2-
yl]methoxy}phosphonic acid) is what type of reaction?