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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. Reduces Ar-CH3 to -COOH






2. Cis/trans Isomers






3. Anti-alignment required






4. Ph-NH2






5. Differ in position of atoms






6. Aldehyde / ketone synthesis






7. Replaces thioacetal/ketal with carbonyl






8. Forms carboxylic acid; releases N






9. Formation of salcohol from alkene






10. Chiral - with superimposable mirror image






11. Reduces ketone to alkane






12. Nucleophile adds to ketone (forming alcohol)






13. Can protect a ketone






14. Thionyl chloride






15. Less hindered carbon center; chiral inversion






16. Reduces one bond of benzene ring






17. Split an alkene into 2 carbonyls






18. OCH3






19. Attach tosyl group onto alcohol






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






21. Less substituted elimination; sterically hindered






22. Bound to same atom






23. Allylic Substitution






24. Elimination to form alkene






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






26. R-SO3H






27. H2O2






28. Non-superimposable mirror image






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






30. Tertiary carbocation formed; relieved by deprotonation






31. More substituted elimination; more stable






32. Oxirane ring opening






33. Formation of ethoxide






34. Cycloformation






35. Benzaldehyde






36. Splits an ether into alkyl halides






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






38. 2 Sulfide linkages in place of aldehyde






39. Tertiary carbon center; racemic






40. Donate electrons to aromatic ring






41. Highly reactive carbonyl






42. Cyclic ether






43. Alcohol closes ring to form oxirane






44. Differ in rotation about sigma bonds






45. R2C=N-OH






46. Oxidize to -CHO






47. Reacts with alkene to form oxirane






48. CH2-






49. Bound to adjacent atoms






50. Differ in fixed geometrical arrangement of atoms