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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. Bound to same atom






3. OCH3






4. Replaces thioacetal/ketal with carbonyl






5. Oxidize to -COOH






6. Tertiary carbocation formed; relieved by deprotonation






7. Differ in position of atoms






8. Donate electrons to aromatic ring






9. Reduces ketone to alkane






10. Anti-alignment required






11. Differ in fixed geometrical arrangement of atoms






12. Non-superimposable mirror image






13. More substituted elimination; more stable






14. Thionyl chloride






15. Bound to adjacent atoms






16. Splits an ether into alkyl halides






17. Elimination to form alkene






18. Chiral - with superimposable mirror image






19. Forms carboxylic acid; releases N






20. Formation of ethoxide






21. Alcohol closes ring to form oxirane






22. Oxidize to -CHO






23. H2O2






24. Ph-NH2






25. R2C=N-OH






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






27. Aldehyde / ketone synthesis






28. Oxirane ring opening






29. Allylic Substitution






30. Cyclic ether






31. Cycloformation






32. Benzaldehyde






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






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






35. Formation of salcohol from alkene






36. Can protect a ketone






37. CH2-






38. Tertiary carbon center; racemic






39. Nucleophile adds to ketone (forming alcohol)






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






41. Reduces Ar-CH3 to -COOH






42. Differ in rotation about sigma bonds






43. 4-pi system + 2-pi system --> Ring formation






44. Attach tosyl group onto alcohol






45. Less substituted elimination; sterically hindered






46. Highly reactive carbonyl






47. Reduces one bond of benzene ring






48. Reacts with alkene to form oxirane






49. R-SO3H






50. Ch2I2 - Zn(Cu)