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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. Cycloformation






2. Reduces one bond of benzene ring






3. Ch2I2 - Zn(Cu)






4. Oxidize to -CHO






5. Thionyl chloride






6. Reduces Ar-CH3 to -COOH






7. Formation of salcohol from alkene






8. Anti-alignment required






9. Attach tosyl group onto alcohol






10. R2C=N-OH






11. Reduces ketone to alkane






12. Non-superimposable mirror image






13. Aldehyde / ketone synthesis






14. Reacts with alkene to form oxirane






15. Differ in rotation about sigma bonds






16. Replaces thioacetal/ketal with carbonyl






17. 4-pi system + 2-pi system --> Ring formation






18. Oxirane ring opening






19. Tertiary carbocation formed; relieved by deprotonation






20. Oxidize to -COOH






21. Elimination to form alkene






22. Forms carboxylic acid; releases N






23. Formation of ethoxide






24. Split an alkene into 2 carbonyls






25. R-SO3H






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






27. More substituted elimination; more stable






28. Donate electrons to aromatic ring






29. Differ in position of atoms






30. Nucleophile adds to ketone (forming alcohol)






31. Allylic Substitution






32. Tertiary carbon center; racemic






33. Splits an ether into alkyl halides






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






35. Cyclic ether






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






37. Can protect a ketone






38. Alcohol closes ring to form oxirane






39. Benzaldehyde






40. OCH3






41. Chiral - with superimposable mirror image






42. Bound to adjacent atoms






43. Less hindered carbon center; chiral inversion






44. 2 Sulfide linkages in place of aldehyde






45. Ph-NH2






46. Cis/trans Isomers






47. H2O2






48. Highly reactive carbonyl






49. Bound to same atom






50. Differ in fixed geometrical arrangement of atoms