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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. Chiral - with superimposable mirror image






2. R-SO3H






3. Tertiary carbon center; racemic






4. Allylic Substitution






5. Bound to same atom






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






7. Oxidize to -COOH






8. Cycloformation






9. Elimination to form alkene






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






11. Splits an ether into alkyl halides






12. Ch2I2 - Zn(Cu)






13. Can protect a ketone






14. Less hindered carbon center; chiral inversion






15. Cyclic ether






16. Non-superimposable mirror image






17. Reduces Ar-CH3 to -COOH






18. Attach tosyl group onto alcohol






19. Donate electrons to aromatic ring






20. Oxidize to -CHO






21. Ph-NH2






22. Differ in fixed geometrical arrangement of atoms






23. 2 Sulfide linkages in place of aldehyde






24. Oxirane ring opening






25. Less substituted elimination; sterically hindered






26. Tertiary carbocation formed; relieved by deprotonation






27. CH2-






28. Split an alkene into 2 carbonyls






29. Cis/trans Isomers






30. H2O2






31. Bound to adjacent atoms






32. Formation of salcohol from alkene






33. Benzaldehyde






34. More substituted elimination; more stable






35. Differ in position of atoms






36. Anti-alignment required






37. Replaces thioacetal/ketal with carbonyl






38. Forms carboxylic acid; releases N






39. Alcohol closes ring to form oxirane






40. Highly reactive carbonyl






41. Aldehyde / ketone synthesis






42. Reduces one bond of benzene ring






43. Reduces ketone to alkane






44. 4-pi system + 2-pi system --> Ring formation






45. OCH3






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






47. Differ in rotation about sigma bonds






48. Nucleophile adds to ketone (forming alcohol)






49. R2C=N-OH






50. Formation of ethoxide