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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. Non-superimposable mirror image






2. Reduces one bond of benzene ring






3. Differ in fixed geometrical arrangement of atoms






4. Reacts with alkene to form oxirane






5. Can protect a ketone






6. Less substituted elimination; sterically hindered






7. Splits an ether into alkyl halides






8. Split an alkene into 2 carbonyls






9. CH2-






10. Nucleophile adds to ketone (forming alcohol)






11. Reduces Ar-CH3 to -COOH






12. Forms carboxylic acid; releases N






13. Reduces ketone to alkane






14. Oxidize to -COOH






15. Ph-NH2






16. R2C=N-OH






17. Alcohol closes ring to form oxirane






18. Replaces thioacetal/ketal with carbonyl






19. Bound to adjacent atoms






20. Elimination to form alkene






21. Less hindered carbon center; chiral inversion






22. Tertiary carbocation formed; relieved by deprotonation






23. Oxirane ring opening






24. Differ in position of atoms






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






26. Chiral - with superimposable mirror image






27. Differ in rotation about sigma bonds






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






29. Cycloformation






30. Thionyl chloride






31. H2O2






32. Tertiary carbon center; racemic






33. Ch2I2 - Zn(Cu)






34. Formation of ethoxide






35. Oxidize to -CHO






36. Cyclic ether






37. More substituted elimination; more stable






38. Formation of salcohol from alkene






39. R-SO3H






40. Attach tosyl group onto alcohol






41. Cis/trans Isomers






42. 4-pi system + 2-pi system --> Ring formation






43. Aldehyde / ketone synthesis






44. Bound to same atom






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






46. OCH3






47. Highly reactive carbonyl






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






49. Benzaldehyde






50. Anti-alignment required