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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. Bound to same atom






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






3. Split an alkene into 2 carbonyls






4. CH2-






5. Ph-NH2






6. Bound to adjacent atoms






7. Differ in rotation about sigma bonds






8. Can protect a ketone






9. Attach tosyl group onto alcohol






10. Nucleophile adds to ketone (forming alcohol)






11. Reduces one bond of benzene ring






12. Forms carboxylic acid; releases N






13. Splits an ether into alkyl halides






14. Cyclic ether






15. Cis/trans Isomers






16. Anti-alignment required






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






18. Ch2I2 - Zn(Cu)






19. OCH3






20. Formation of salcohol from alkene






21. Tertiary carbon center; racemic






22. Replaces thioacetal/ketal with carbonyl






23. 4-pi system + 2-pi system --> Ring formation






24. Formation of ethoxide






25. More substituted elimination; more stable






26. R2C=N-OH






27. Reduces Ar-CH3 to -COOH






28. Less substituted elimination; sterically hindered






29. Oxidize to -COOH






30. H2O2






31. Benzaldehyde






32. 2 Sulfide linkages in place of aldehyde






33. Tertiary carbocation formed; relieved by deprotonation






34. Chiral - with superimposable mirror image






35. Reacts with alkene to form oxirane






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






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






38. Donate electrons to aromatic ring






39. Alcohol closes ring to form oxirane






40. Cycloformation






41. Thionyl chloride






42. Allylic Substitution






43. Aldehyde / ketone synthesis






44. Reduces ketone to alkane






45. Oxirane ring opening






46. Differ in position of atoms






47. Highly reactive carbonyl






48. Less hindered carbon center; chiral inversion






49. Differ in fixed geometrical arrangement of atoms






50. Elimination to form alkene