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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. Bound to same atom






2. Bound to adjacent atoms






3. Non-superimposable mirror image






4. Ch2I2 - Zn(Cu)






5. Donate electrons to aromatic ring






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






7. Alcohol closes ring to form oxirane






8. Split an alkene into 2 carbonyls






9. R-SO3H






10. Differ in fixed geometrical arrangement of atoms






11. Can protect a ketone






12. Formation of ethoxide






13. R2C=N-OH






14. 2 Sulfide linkages in place of aldehyde






15. Thionyl chloride






16. Highly reactive carbonyl






17. Tertiary carbocation formed; relieved by deprotonation






18. H2O2






19. Reduces Ar-CH3 to -COOH






20. Allylic Substitution






21. Splits an ether into alkyl halides






22. Elimination to form alkene






23. Tertiary carbon center; racemic






24. CH2-






25. Cis/trans Isomers






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






27. Oxidize to -CHO






28. Reacts with alkene to form oxirane






29. Cyclic ether






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






31. Forms carboxylic acid; releases N






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






33. Reduces ketone to alkane






34. 4-pi system + 2-pi system --> Ring formation






35. Anti-alignment required






36. Ph-NH2






37. Replaces thioacetal/ketal with carbonyl






38. Differ in rotation about sigma bonds






39. Less hindered carbon center; chiral inversion






40. Formation of salcohol from alkene






41. OCH3






42. Chiral - with superimposable mirror image






43. Oxirane ring opening






44. Less substituted elimination; sterically hindered






45. Differ in position of atoms






46. Cycloformation






47. Oxidize to -COOH






48. Reduces one bond of benzene ring






49. More substituted elimination; more stable






50. Aldehyde / ketone synthesis