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. Differ in rotation about sigma bonds






2. OCH3






3. Aldehyde / ketone synthesis






4. Allylic Substitution






5. 4-pi system + 2-pi system --> Ring formation






6. Reacts with alkene to form oxirane






7. Donate electrons to aromatic ring






8. Alcohol closes ring to form oxirane






9. R2C=N-OH






10. Bound to adjacent atoms






11. H2O2






12. Splits an ether into alkyl halides






13. Non-superimposable mirror image






14. Chiral - with superimposable mirror image






15. Can protect a ketone






16. Cis/trans Isomers






17. Reduces one bond of benzene ring






18. Anti-alignment required






19. Formation of salcohol from alkene






20. Attach tosyl group onto alcohol






21. Cycloformation






22. Oxirane ring opening






23. Elimination to form alkene






24. Differ in fixed geometrical arrangement of atoms






25. Nucleophile adds to ketone (forming alcohol)






26. Tertiary carbon center; racemic






27. Replaces thioacetal/ketal with carbonyl






28. Ph-NH2






29. Cyclic ether






30. Benzaldehyde






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






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






33. Less hindered carbon center; chiral inversion






34. Bound to same atom






35. CH2-






36. Oxidize to -CHO






37. Ch2I2 - Zn(Cu)






38. Oxidize to -COOH






39. R-SO3H






40. More substituted elimination; more stable






41. Reduces Ar-CH3 to -COOH






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






43. Forms carboxylic acid; releases N






44. 2 Sulfide linkages in place of aldehyde






45. Split an alkene into 2 carbonyls






46. Differ in position of atoms






47. Tertiary carbocation formed; relieved by deprotonation






48. Formation of ethoxide






49. Highly reactive carbonyl






50. Thionyl chloride