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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. Cis/trans Isomers






2. Elimination to form alkene






3. Anti-alignment required






4. Bound to adjacent atoms






5. Reduces ketone to alkane






6. Highly reactive carbonyl






7. OCH3






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






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






10. Oxidize to -COOH






11. Ch2I2 - Zn(Cu)






12. Aldehyde / ketone synthesis






13. Reduces Ar-CH3 to -COOH






14. Nucleophile adds to ketone (forming alcohol)






15. Donate electrons to aromatic ring






16. CH2-






17. Reduces one bond of benzene ring






18. Less substituted elimination; sterically hindered






19. Replaces thioacetal/ketal with carbonyl






20. Thionyl chloride






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






22. Oxidize to -CHO






23. Less hindered carbon center; chiral inversion






24. Ph-NH2






25. Bound to same atom






26. Alcohol closes ring to form oxirane






27. 4-pi system + 2-pi system --> Ring formation






28. R-SO3H






29. Benzaldehyde






30. Tertiary carbocation formed; relieved by deprotonation






31. R2C=N-OH






32. H2O2






33. Oxirane ring opening






34. Non-superimposable mirror image






35. Can protect a ketone






36. Cycloformation






37. Attach tosyl group onto alcohol






38. Differ in rotation about sigma bonds






39. Tertiary carbon center; racemic






40. Cyclic ether






41. Split an alkene into 2 carbonyls






42. More substituted elimination; more stable






43. Forms carboxylic acid; releases N






44. Differ in fixed geometrical arrangement of atoms






45. Chiral - with superimposable mirror image






46. Splits an ether into alkyl halides






47. Differ in position of atoms






48. Formation of ethoxide






49. 2 Sulfide linkages in place of aldehyde






50. Allylic Substitution