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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. Reduces Ar-CH3 to -COOH






2. Forms carboxylic acid; releases N






3. R2C=N-OH






4. Split an alkene into 2 carbonyls






5. Aldehyde / ketone synthesis






6. Anti-alignment required






7. Ch2I2 - Zn(Cu)






8. Reacts with alkene to form oxirane






9. Bound to adjacent atoms






10. Nucleophile adds to ketone (forming alcohol)






11. Differ in position of atoms






12. 4-pi system + 2-pi system --> Ring formation






13. Replaces thioacetal/ketal with carbonyl






14. Donate electrons to aromatic ring






15. Formation of salcohol from alkene






16. Oxidize to -CHO






17. Cyclic ether






18. CH2-






19. Chiral - with superimposable mirror image






20. Highly reactive carbonyl






21. Benzaldehyde






22. Can protect a ketone






23. Tertiary carbocation formed; relieved by deprotonation






24. Tertiary carbon center; racemic






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






26. Less substituted elimination; sterically hindered






27. Non-superimposable mirror image






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






29. Cycloformation






30. R-SO3H






31. Ph-NH2






32. One carbon away from aryl group can be reduced with Pd / H2






33. OCH3






34. Formation of ethoxide






35. Splits an ether into alkyl halides






36. Differ in rotation about sigma bonds






37. Reduces ketone to alkane






38. Reduces one bond of benzene ring






39. More substituted elimination; more stable






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






41. H2O2






42. Oxirane ring opening






43. Elimination to form alkene






44. Differ in fixed geometrical arrangement of atoms






45. Less hindered carbon center; chiral inversion






46. Thionyl chloride






47. Bound to same atom






48. 2 Sulfide linkages in place of aldehyde






49. Allylic Substitution






50. Attach tosyl group onto alcohol