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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. Formation of ethoxide






2. Aldehyde / ketone synthesis






3. Cis/trans Isomers






4. Tertiary carbon center; racemic






5. Reduces Ar-CH3 to -COOH






6. Donate electrons to aromatic ring






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






8. Chiral - with superimposable mirror image






9. Differ in position of atoms






10. Replaces thioacetal/ketal with carbonyl






11. Ph-NH2






12. Allylic Substitution






13. Differ in rotation about sigma bonds






14. Thionyl chloride






15. Nucleophile adds to ketone (forming alcohol)






16. 4-pi system + 2-pi system --> Ring formation






17. Bound to adjacent atoms






18. 2 Sulfide linkages in place of aldehyde






19. Reduces one bond of benzene ring






20. Elimination to form alkene






21. CH2-






22. Splits an ether into alkyl halides






23. Cyclic ether






24. Alcohol closes ring to form oxirane






25. Oxidize to -CHO






26. Reduces ketone to alkane






27. Attach tosyl group onto alcohol






28. H2O2






29. Oxidize to -COOH






30. Differ in fixed geometrical arrangement of atoms






31. OCH3






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






33. Can protect a ketone






34. Oxirane ring opening






35. Bound to same atom






36. Reacts with alkene to form oxirane






37. Tertiary carbocation formed; relieved by deprotonation






38. Forms carboxylic acid; releases N






39. Non-superimposable mirror image






40. More substituted elimination; more stable






41. Split an alkene into 2 carbonyls






42. Less hindered carbon center; chiral inversion






43. Formation of salcohol from alkene






44. Less substituted elimination; sterically hindered






45. Ch2I2 - Zn(Cu)






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






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






48. Anti-alignment required






49. Cycloformation






50. R-SO3H