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. Reduces Ar-CH3 to -COOH






2. 2 Sulfide linkages in place of aldehyde






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






4. Can protect a ketone






5. OCH3






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






7. Cis/trans Isomers






8. Oxidize to -CHO






9. R-SO3H






10. Cycloformation






11. Bound to same atom






12. Split an alkene into 2 carbonyls






13. Differ in fixed geometrical arrangement of atoms






14. Formation of salcohol from alkene






15. Donate electrons to aromatic ring






16. Nucleophile adds to ketone (forming alcohol)






17. Splits an ether into alkyl halides






18. Thionyl chloride






19. Benzaldehyde






20. H2O2






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






22. Alcohol closes ring to form oxirane






23. Tertiary carbocation formed; relieved by deprotonation






24. Replaces thioacetal/ketal with carbonyl






25. Formation of ethoxide






26. Ph-NH2






27. Differ in position of atoms






28. Aldehyde / ketone synthesis






29. Forms carboxylic acid; releases N






30. Chiral - with superimposable mirror image






31. R2C=N-OH






32. Elimination to form alkene






33. Highly reactive carbonyl






34. More substituted elimination; more stable






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






36. Ch2I2 - Zn(Cu)






37. Anti-alignment required






38. Non-superimposable mirror image






39. Oxirane ring opening






40. Attach tosyl group onto alcohol






41. Tertiary carbon center; racemic






42. Reacts with alkene to form oxirane






43. Allylic Substitution






44. Oxidize to -COOH






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






46. Bound to adjacent atoms






47. Less hindered carbon center; chiral inversion






48. Cyclic ether






49. Less substituted elimination; sterically hindered






50. Reduces one bond of benzene ring