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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. R-SO3H






2. Reacts with alkene to form oxirane






3. Split an alkene into 2 carbonyls






4. Formation of ethoxide






5. Bound to same atom






6. Ch2I2 - Zn(Cu)






7. OCH3






8. 4-pi system + 2-pi system --> Ring formation






9. Highly reactive carbonyl






10. Attach tosyl group onto alcohol






11. Bound to adjacent atoms






12. Elimination to form alkene






13. Reduces one bond of benzene ring






14. Oxidize to -CHO






15. Benzaldehyde






16. Can protect a ketone






17. Differ in fixed geometrical arrangement of atoms






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






19. Non-superimposable mirror image






20. Ph-NH2






21. Cycloformation






22. Anti-alignment required






23. Formation of salcohol from alkene






24. Forms carboxylic acid; releases N






25. Splits an ether into alkyl halides






26. Donate electrons to aromatic ring






27. Reduces ketone to alkane






28. Nucleophile adds to ketone (forming alcohol)






29. H2O2






30. Oxirane ring opening






31. Replaces thioacetal/ketal with carbonyl






32. Differ in position of atoms






33. Less substituted elimination; sterically hindered






34. Tertiary carbon center; racemic






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






36. Thionyl chloride






37. Tertiary carbocation formed; relieved by deprotonation






38. More substituted elimination; more stable






39. CH2-






40. Cis/trans Isomers






41. Oxidize to -COOH






42. Allylic Substitution






43. Alcohol closes ring to form oxirane






44. Chiral - with superimposable mirror image






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






46. Less hindered carbon center; chiral inversion






47. Aldehyde / ketone synthesis






48. Reduces Ar-CH3 to -COOH






49. Cyclic ether






50. R2C=N-OH