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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. Highly reactive carbonyl






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






3. Replaces thioacetal/ketal with carbonyl






4. Anti-alignment required






5. Attach tosyl group onto alcohol






6. R-SO3H






7. Benzaldehyde






8. Forms carboxylic acid; releases N






9. Thionyl chloride






10. Cis/trans Isomers






11. Reacts with alkene to form oxirane






12. Formation of salcohol from alkene






13. Differ in fixed geometrical arrangement of atoms






14. Non-superimposable mirror image






15. Less hindered carbon center; chiral inversion






16. Differ in position of atoms






17. Ph-NH2






18. Elimination to form alkene






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






20. R2C=N-OH






21. Alcohol closes ring to form oxirane






22. 2 Sulfide linkages in place of aldehyde






23. Splits an ether into alkyl halides






24. Bound to adjacent atoms






25. Reduces ketone to alkane






26. H2O2






27. Oxirane ring opening






28. Cyclic ether






29. Cycloformation






30. Reduces one bond of benzene ring






31. Differ in rotation about sigma bonds






32. Bound to same atom






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






34. 4-pi system + 2-pi system --> Ring formation






35. Nucleophile adds to ketone (forming alcohol)






36. Reduces Ar-CH3 to -COOH






37. Donate electrons to aromatic ring






38. Split an alkene into 2 carbonyls






39. Ch2I2 - Zn(Cu)






40. Oxidize to -CHO






41. Less substituted elimination; sterically hindered






42. Chiral - with superimposable mirror image






43. Can protect a ketone






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






45. Aldehyde / ketone synthesis






46. CH2-






47. Tertiary carbocation formed; relieved by deprotonation






48. More substituted elimination; more stable






49. Tertiary carbon center; racemic






50. Allylic Substitution