9. The reaction in question 8 is classified as a ...
(A) [3,3] sigmatropic rearrangement
(B) [6π] electrocyclization
(C) [4+2] cycloaddition
(D) [2+2] cycloaddition

(E) [3+3] cycloaddition

10. What would be the major product of the following reaction?(A)(B) (C) (D) (E)

11. Which of the following is/are nonaromatic?(A) 1 and 2(B) 3 and 5(C) 3(D) 4(E) 4 and 5

12. What is the complete systematic IUPAC name for Compound J?(A) (1S,4R)-1-hydroxy-4-isopropylcyclopent-2-ene(B) (1R,4S)-1-hydroxy-4-isopropylcyclopent-2-ene(C) (1S,4R)-4-isopropylcyclopent-2-en-1-ol(D) (1R,4R)-4-isopropylcyclopent-2-en-1-ol(E) (1S,4R)-1-isopropylcyclopent-2-en-4-ol

13. What is the most likely structure of Compound K?(A) structure A with HO group(B) structure B with OH group(C) structure C with OH groups(D) ketone structure D(E) ketone structure E

14. How would you use the following sets of reagents to synthesize Compound M from benzene (providing that ortho and para products can be separated)?1) NaOMe, MeOH, heat 2) HNO3, H2SO4 3) Cl2, FeCl3 4) NaNO2, HCl(A) 3 then 1 then 2(B) 2 then 3 then 1(C) 3 then 2 then 1(D) 4 then 3 then 1(E) 3 then 4 then 1

15. What is the most likely structure of Compound N?(A)(B) (C)(D) (E)

16. 18 electrons can generally be the most stable configuration for most organometallic compounds due to:(A) electrons filling in antibonding orbitals in the molecular orbitals(B) no electron filling in antibonding orbitals in the molecular orbitals(C) electrons filling in non-bonding orbitals in the molecular orbitals(D) no electrons filling in non-bonding orbitals in the molecular orbitals(E) None of the above

17. What is the point group of a water molecule?(A) C2v(B) C2(C) C3v(D) σd(E) None of the above

18. X-rays have a shorter wavelength than visible light?(A) True(B) NOT True(C) No such thing called X-ray(D) No such thing called visible light(E) None of the above

19. In a two-dimensional crystal lattice, which one of the following indices corresponds to the smallest density of lattice points?(A) (10)(B) (13)(C) (21)(D) (11)(E) (41)

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