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GRE Chemistry Organic

Subjects : gre, science, chemistry
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. One carbon away from aryl group can be reduced with Pd / H2






2. Oxirane ring opening






3. CH2-






4. Benzaldehyde






5. Uses Hg(OAc)2 + R'OH; forms ether from alkene






6. Bound to adjacent atoms






7. Less hindered carbon center; chiral inversion






8. Formation of ethoxide






9. Tertiary carbocation formed; relieved by deprotonation






10. Allylic Substitution






11. Differ in position of atoms






12. Ph-NH2






13. Reduces Ar-CH3 to -COOH






14. Elimination to form alkene






15. Aldehyde / ketone synthesis






16. Differ in rotation about sigma bonds






17. Nucleophile adds to ketone (forming alcohol)






18. Attach tosyl group onto alcohol






19. Tertiary carbon center; racemic






20. R-SO3H






21. OCH3






22. Best with electron withdrawing group ortho/para to substitution site






23. 2 Sulfide linkages in place of aldehyde






24. R2C=N-OH






25. Oxidize to -CHO






26. Non-superimposable mirror image






27. Ch2I2 - Zn(Cu)






28. Less substituted elimination; sterically hindered






29. Replaces thioacetal/ketal with carbonyl






30. Anti-alignment required






31. Alcohol closes ring to form oxirane






32. Reduces one bond of benzene ring






33. Cis/trans Isomers






34. Cycloformation






35. Splits an ether into alkyl halides






36. H2O2






37. Reacts with alkene to form oxirane






38. Formation of salcohol from alkene






39. Chiral - with superimposable mirror image






40. Forms carboxylic acid; releases N






41. Oxidize to -COOH






42. Bound to same atom






43. Donate electrons to aromatic ring






44. Can protect a ketone






45. R-NH2 + NaNO2/HCl --> R-N=N+ Cl-






46. Differ in fixed geometrical arrangement of atoms






47. Cyclic ether






48. 4-pi system + 2-pi system --> Ring formation






49. Highly reactive carbonyl






50. Thionyl chloride