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






2. Bound to same atom






3. Bound to adjacent atoms






4. Oxidize to -COOH






5. Allylic Substitution






6. 4-pi system + 2-pi system --> Ring formation






7. Oxidize to -CHO






8. 2 Sulfide linkages in place of aldehyde






9. Tertiary carbocation formed; relieved by deprotonation






10. Donate electrons to aromatic ring






11. More substituted elimination; more stable






12. Cycloformation






13. Formation of salcohol from alkene






14. Reduces Ar-CH3 to -COOH






15. Chiral - with superimposable mirror image






16. Highly reactive carbonyl






17. Reduces ketone to alkane






18. Attach tosyl group onto alcohol






19. Replaces thioacetal/ketal with carbonyl






20. Tertiary carbon center; racemic






21. Nucleophile adds to ketone (forming alcohol)






22. Non-superimposable mirror image






23. Anti-alignment required






24. Benzaldehyde






25. R2C=N-OH






26. H2O2






27. Differ in rotation about sigma bonds






28. Less substituted elimination; sterically hindered






29. Can protect a ketone






30. Oxirane ring opening






31. Reduces one bond of benzene ring






32. Reacts with alkene to form oxirane






33. Aldehyde / ketone synthesis






34. Ph-NH2






35. OCH3






36. Thionyl chloride






37. Differ in fixed geometrical arrangement of atoms






38. Elimination to form alkene






39. Alcohol closes ring to form oxirane






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






41. Cis/trans Isomers






42. Split an alkene into 2 carbonyls






43. R-SO3H






44. Ch2I2 - Zn(Cu)






45. Splits an ether into alkyl halides






46. Cyclic ether






47. Less hindered carbon center; chiral inversion






48. CH2-






49. Forms carboxylic acid; releases N






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