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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. Reduces ketone to alkane






2. Elimination to form alkene






3. Cycloformation






4. R-SO3H






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






6. Ch2I2 - Zn(Cu)






7. Reduces Ar-CH3 to -COOH






8. H2O2






9. Cyclic ether






10. Reacts with alkene to form oxirane






11. Forms carboxylic acid; releases N






12. Differ in position of atoms






13. CH2-






14. Reduces one bond of benzene ring






15. Less substituted elimination; sterically hindered






16. Ph-NH2






17. Split an alkene into 2 carbonyls






18. More substituted elimination; more stable






19. Formation of salcohol from alkene






20. Attach tosyl group onto alcohol






21. Anti-alignment required






22. Replaces thioacetal/ketal with carbonyl






23. Benzaldehyde






24. Thionyl chloride






25. Alcohol closes ring to form oxirane






26. Non-superimposable mirror image






27. Aldehyde / ketone synthesis






28. Formation of ethoxide






29. Splits an ether into alkyl halides






30. Tertiary carbon center; racemic






31. Allylic Substitution






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






33. Chiral - with superimposable mirror image






34. Donate electrons to aromatic ring






35. Less hindered carbon center; chiral inversion






36. Bound to same atom






37. Differ in fixed geometrical arrangement of atoms






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






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






40. 4-pi system + 2-pi system --> Ring formation






41. R2C=N-OH






42. Oxidize to -CHO






43. Oxirane ring opening






44. Oxidize to -COOH






45. Highly reactive carbonyl






46. Differ in rotation about sigma bonds






47. Nucleophile adds to ketone (forming alcohol)






48. Bound to adjacent atoms






49. Can protect a ketone






50. Cis/trans Isomers