Chapter 2, Problem 50P

14.32 What diene and dienophile are needed to prepare each compound by a Diels-Alder reaction? a. b.

14.34 Draw all reasonable resonance structures for each species. a. b. Ö :0: C. :0: :0: d. OH e. f. :O:

7. The standard reduction potentials for two half-reactions are shown above. Which of the statements listed below will be true for the following reaction taking place under standard conditions? a. E° b. E° c. E° = d. E° e. E° = Al (s) + Cr³+ → Al³+ + Cr (s) 0.93 V, and the reaction is not spontaneous 0.93 V, and the reaction is spontaneous 2.39 V, and the reaction is not spontaneous 2.39 V, and the reaction is not spontaneous 0.93 V, and the reaction is spontaneous Cu2+ + 2e → Cu E° = +0.34 V Zn2+ + 2e → Zn E° = -0.76 V E° = -1.18 V Mn2+ + 2e → Mn 8. Based on the above reduction potential, which of the following reactions will occur spontaneously? a. Mn²+ + Cu → Mn + Cu2+ b. Mn²+ + Zn → Mn + Zn²+ c. Zn2+ + Cu → Zn + Cu²+ d. Zn²+ + Mn → Zn + Mn2+ e. Cu²+ + Zn²+ → Cu + Zn

14.35 For which compounds can a second resonance structure be drawn? Draw an additional resonance structure and the hybrid for each resonance-stabilized compound. a. OCH3 OCH 3 b. C. d. CH3 NHCH3

pls help on all, inlcude all steps.

pls help on all, inlcude all steps.

pls help on all, inlcude all steps.

pls help on all, inlcude all steps.

pls help on all, inlcude all steps.