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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. Elimination to form alkene






2. H2O2






3. Non-superimposable mirror image






4. Oxirane ring opening






5. Cis/trans Isomers






6. Oxidize to -CHO






7. Cycloformation






8. Benzaldehyde






9. Splits an ether into alkyl halides






10. Bound to adjacent atoms






11. Alcohol closes ring to form oxirane






12. Reduces Ar-CH3 to -COOH






13. Attach tosyl group onto alcohol






14. Split an alkene into 2 carbonyls






15. Reduces ketone to alkane






16. Tertiary carbon center; racemic






17. Tertiary carbocation formed; relieved by deprotonation






18. Formation of ethoxide






19. Forms carboxylic acid; releases N






20. More substituted elimination; more stable






21. Thionyl chloride






22. Ph-NH2






23. Anti-alignment required






24. Allylic Substitution






25. 2 Sulfide linkages in place of aldehyde






26. Nucleophile adds to ketone (forming alcohol)






27. Less substituted elimination; sterically hindered






28. Reduces one bond of benzene ring






29. Differ in fixed geometrical arrangement of atoms






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






31. R-SO3H






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






33. Donate electrons to aromatic ring






34. OCH3






35. Replaces thioacetal/ketal with carbonyl






36. Differ in position of atoms






37. Bound to same atom






38. Less hindered carbon center; chiral inversion






39. 4-pi system + 2-pi system --> Ring formation






40. Chiral - with superimposable mirror image






41. Reacts with alkene to form oxirane






42. CH2-






43. Oxidize to -COOH






44. R2C=N-OH






45. Cyclic ether






46. Can protect a ketone






47. Aldehyde / ketone synthesis






48. Ch2I2 - Zn(Cu)






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






50. Formation of salcohol from alkene