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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. Cis/trans Isomers






2. Differ in position of atoms






3. Less hindered carbon center; chiral inversion






4. Splits an ether into alkyl halides






5. Nucleophile adds to ketone (forming alcohol)






6. More substituted elimination; more stable






7. Aldehyde / ketone synthesis






8. 4-pi system + 2-pi system --> Ring formation






9. Non-superimposable mirror image






10. Ch2I2 - Zn(Cu)






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






12. CH2-






13. Allylic Substitution






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






15. Differ in fixed geometrical arrangement of atoms






16. Cycloformation






17. Formation of ethoxide






18. Thionyl chloride






19. OCH3






20. R2C=N-OH






21. Benzaldehyde






22. Highly reactive carbonyl






23. Formation of salcohol from alkene






24. Elimination to form alkene






25. Oxirane ring opening






26. Alcohol closes ring to form oxirane






27. R-SO3H






28. Anti-alignment required






29. Differ in rotation about sigma bonds






30. Tertiary carbocation formed; relieved by deprotonation






31. Reduces one bond of benzene ring






32. Donate electrons to aromatic ring






33. Reduces ketone to alkane






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






35. Cyclic ether






36. H2O2






37. Reacts with alkene to form oxirane






38. Split an alkene into 2 carbonyls






39. Replaces thioacetal/ketal with carbonyl






40. Attach tosyl group onto alcohol






41. Oxidize to -CHO






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






43. Tertiary carbon center; racemic






44. Reduces Ar-CH3 to -COOH






45. Can protect a ketone






46. Less substituted elimination; sterically hindered






47. Ph-NH2






48. 2 Sulfide linkages in place of aldehyde






49. Forms carboxylic acid; releases N






50. Oxidize to -COOH