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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. Oxidize to -CHO






2. Reduces one bond of benzene ring






3. Bound to same atom






4. Differ in rotation about sigma bonds






5. Donate electrons to aromatic ring






6. Thionyl chloride






7. Highly reactive carbonyl






8. Differ in fixed geometrical arrangement of atoms






9. Split an alkene into 2 carbonyls






10. Chiral - with superimposable mirror image






11. Tertiary carbon center; racemic






12. CH2-






13. Reacts with alkene to form oxirane






14. Cyclic ether






15. Bound to adjacent atoms






16. R-SO3H






17. Aldehyde / ketone synthesis






18. Oxirane ring opening






19. Less hindered carbon center; chiral inversion






20. Tertiary carbocation formed; relieved by deprotonation






21. Ph-NH2






22. Cis/trans Isomers






23. 2 Sulfide linkages in place of aldehyde






24. Allylic Substitution






25. Anti-alignment required






26. Cycloformation






27. R2C=N-OH






28. Alcohol closes ring to form oxirane






29. Elimination to form alkene






30. Differ in position of atoms






31. Oxidize to -COOH






32. Non-superimposable mirror image






33. Replaces thioacetal/ketal with carbonyl






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






35. Formation of ethoxide






36. Less substituted elimination; sterically hindered






37. More substituted elimination; more stable






38. Reduces ketone to alkane






39. Formation of salcohol from alkene






40. OCH3






41. H2O2






42. Ch2I2 - Zn(Cu)






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






44. Benzaldehyde






45. Attach tosyl group onto alcohol






46. Nucleophile adds to ketone (forming alcohol)






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






48. Reduces Ar-CH3 to -COOH






49. 4-pi system + 2-pi system --> Ring formation






50. Can protect a ketone