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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. Oxidize to -CHO






2. Tertiary carbon center; racemic






3. Can protect a ketone






4. H2O2






5. Differ in position of atoms






6. Tertiary carbocation formed; relieved by deprotonation






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






8. Split an alkene into 2 carbonyls






9. Alcohol closes ring to form oxirane






10. Less substituted elimination; sterically hindered






11. Bound to adjacent atoms






12. Bound to same atom






13. Reduces one bond of benzene ring






14. OCH3






15. R2C=N-OH






16. Highly reactive carbonyl






17. Differ in rotation about sigma bonds






18. Cycloformation






19. Differ in fixed geometrical arrangement of atoms






20. Formation of ethoxide






21. Reacts with alkene to form oxirane






22. Splits an ether into alkyl halides






23. Thionyl chloride






24. Attach tosyl group onto alcohol






25. Less hindered carbon center; chiral inversion






26. Replaces thioacetal/ketal with carbonyl






27. R-SO3H






28. Oxidize to -COOH






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






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






31. 2 Sulfide linkages in place of aldehyde






32. Elimination to form alkene






33. Aldehyde / ketone synthesis






34. Forms carboxylic acid; releases N






35. Formation of salcohol from alkene






36. CH2-






37. Anti-alignment required






38. Cis/trans Isomers






39. Donate electrons to aromatic ring






40. Chiral - with superimposable mirror image






41. Nucleophile adds to ketone (forming alcohol)






42. Benzaldehyde






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






44. Non-superimposable mirror image






45. Reduces Ar-CH3 to -COOH






46. 4-pi system + 2-pi system --> Ring formation






47. Reduces ketone to alkane






48. Ph-NH2






49. Oxirane ring opening






50. Cyclic ether