Test your basic knowledge |

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. Formation of ethoxide






2. Elimination to form alkene






3. Tertiary carbon center; racemic






4. Donate electrons to aromatic ring






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






6. Cyclic ether






7. Differ in fixed geometrical arrangement of atoms






8. Ch2I2 - Zn(Cu)






9. R2C=N-OH






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






11. Splits an ether into alkyl halides






12. H2O2






13. Thionyl chloride






14. R-SO3H






15. Reduces Ar-CH3 to -COOH






16. Benzaldehyde






17. Replaces thioacetal/ketal with carbonyl






18. Oxidize to -COOH






19. Cis/trans Isomers






20. Oxidize to -CHO






21. 4-pi system + 2-pi system --> Ring formation






22. Non-superimposable mirror image






23. Formation of salcohol from alkene






24. Cycloformation






25. Can protect a ketone






26. Oxirane ring opening






27. OCH3






28. Nucleophile adds to ketone (forming alcohol)






29. Less substituted elimination; sterically hindered






30. Bound to adjacent atoms






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






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






33. Reduces ketone to alkane






34. Less hindered carbon center; chiral inversion






35. Anti-alignment required






36. More substituted elimination; more stable






37. 2 Sulfide linkages in place of aldehyde






38. Tertiary carbocation formed; relieved by deprotonation






39. Reduces one bond of benzene ring






40. Forms carboxylic acid; releases N






41. Differ in rotation about sigma bonds






42. Aldehyde / ketone synthesis






43. Bound to same atom






44. Alcohol closes ring to form oxirane






45. CH2-






46. Reacts with alkene to form oxirane






47. Attach tosyl group onto alcohol






48. Differ in position of atoms






49. Allylic Substitution






50. Ph-NH2