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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. Bound to same atom






2. Cyclic ether






3. Nucleophile adds to ketone (forming alcohol)






4. Aldehyde / ketone synthesis






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






6. Differ in rotation about sigma bonds






7. CH2-






8. Non-superimposable mirror image






9. Ph-NH2






10. Bound to adjacent atoms






11. Oxirane ring opening






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






13. OCH3






14. Ch2I2 - Zn(Cu)






15. Benzaldehyde






16. Differ in position of atoms






17. Donate electrons to aromatic ring






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






19. Cis/trans Isomers






20. Replaces thioacetal/ketal with carbonyl






21. Tertiary carbocation formed; relieved by deprotonation






22. More substituted elimination; more stable






23. Reduces Ar-CH3 to -COOH






24. Tertiary carbon center; racemic






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






26. Can protect a ketone






27. Reduces ketone to alkane






28. Less substituted elimination; sterically hindered






29. Forms carboxylic acid; releases N






30. 4-pi system + 2-pi system --> Ring formation






31. R2C=N-OH






32. Split an alkene into 2 carbonyls






33. Formation of ethoxide






34. H2O2






35. Allylic Substitution






36. Less hindered carbon center; chiral inversion






37. Anti-alignment required






38. Reduces one bond of benzene ring






39. Highly reactive carbonyl






40. Oxidize to -CHO






41. Differ in fixed geometrical arrangement of atoms






42. Splits an ether into alkyl halides






43. Cycloformation






44. 2 Sulfide linkages in place of aldehyde






45. Oxidize to -COOH






46. Chiral - with superimposable mirror image






47. Elimination to form alkene






48. Formation of salcohol from alkene






49. Alcohol closes ring to form oxirane






50. Attach tosyl group onto alcohol