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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. Highly reactive carbonyl






2. Formation of ethoxide






3. Bound to same atom






4. H2O2






5. Oxirane ring opening






6. Aldehyde / ketone synthesis






7. Attach tosyl group onto alcohol






8. CH2-






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






10. Cyclic ether






11. R-SO3H






12. Reduces ketone to alkane






13. Cycloformation






14. R2C=N-OH






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






16. Nucleophile adds to ketone (forming alcohol)






17. Ph-NH2






18. Thionyl chloride






19. Non-superimposable mirror image






20. 4-pi system + 2-pi system --> Ring formation






21. Donate electrons to aromatic ring






22. Split an alkene into 2 carbonyls






23. More substituted elimination; more stable






24. Alcohol closes ring to form oxirane






25. Formation of salcohol from alkene






26. Oxidize to -CHO






27. Cis/trans Isomers






28. Reduces one bond of benzene ring






29. Tertiary carbon center; racemic






30. Forms carboxylic acid; releases N






31. OCH3






32. Oxidize to -COOH






33. Allylic Substitution






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






35. Differ in rotation about sigma bonds






36. Chiral - with superimposable mirror image






37. Differ in fixed geometrical arrangement of atoms






38. 2 Sulfide linkages in place of aldehyde






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






40. Can protect a ketone






41. Benzaldehyde






42. Splits an ether into alkyl halides






43. Anti-alignment required






44. Bound to adjacent atoms






45. Tertiary carbocation formed; relieved by deprotonation






46. Replaces thioacetal/ketal with carbonyl






47. Elimination to form alkene






48. Reacts with alkene to form oxirane






49. Less hindered carbon center; chiral inversion






50. Ch2I2 - Zn(Cu)