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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. Nucleophile adds to ketone (forming alcohol)






2. Aldehyde / ketone synthesis






3. Cyclic ether






4. More substituted elimination; more stable






5. CH2-






6. Elimination to form alkene






7. Less substituted elimination; sterically hindered






8. Split an alkene into 2 carbonyls






9. Formation of ethoxide






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






11. Reduces Ar-CH3 to -COOH






12. Alcohol closes ring to form oxirane






13. Reacts with alkene to form oxirane






14. Formation of salcohol from alkene






15. Splits an ether into alkyl halides






16. Forms carboxylic acid; releases N






17. Donate electrons to aromatic ring






18. Differ in rotation about sigma bonds






19. H2O2






20. Ch2I2 - Zn(Cu)






21. Can protect a ketone






22. Differ in position of atoms






23. Oxirane ring opening






24. Ph-NH2






25. R-SO3H






26. Tertiary carbon center; racemic






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






28. Oxidize to -CHO






29. Anti-alignment required






30. Reduces one bond of benzene ring






31. 4-pi system + 2-pi system --> Ring formation






32. Chiral - with superimposable mirror image






33. Replaces thioacetal/ketal with carbonyl






34. OCH3






35. 2 Sulfide linkages in place of aldehyde






36. Differ in fixed geometrical arrangement of atoms






37. Oxidize to -COOH






38. Non-superimposable mirror image






39. Attach tosyl group onto alcohol






40. Reduces ketone to alkane






41. R2C=N-OH






42. Thionyl chloride






43. Less hindered carbon center; chiral inversion






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






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






46. Bound to same atom






47. Cis/trans Isomers






48. Highly reactive carbonyl






49. Allylic Substitution






50. Bound to adjacent atoms