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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. Ch2I2 - Zn(Cu)






2. OCH3






3. Reacts with alkene to form oxirane






4. Chiral - with superimposable mirror image






5. Ph-NH2






6. Oxirane ring opening






7. Differ in position of atoms






8. Formation of ethoxide






9. Less substituted elimination; sterically hindered






10. Benzaldehyde






11. More substituted elimination; more stable






12. Oxidize to -COOH






13. CH2-






14. R-SO3H






15. Can protect a ketone






16. Less hindered carbon center; chiral inversion






17. Thionyl chloride






18. Tertiary carbon center; racemic






19. Non-superimposable mirror image






20. Forms carboxylic acid; releases N






21. Elimination to form alkene






22. Tertiary carbocation formed; relieved by deprotonation






23. Reduces one bond of benzene ring






24. 4-pi system + 2-pi system --> Ring formation






25. Alcohol closes ring to form oxirane






26. Bound to same atom






27. Oxidize to -CHO






28. Anti-alignment required






29. R2C=N-OH






30. Split an alkene into 2 carbonyls






31. Cis/trans Isomers






32. Formation of salcohol from alkene






33. H2O2






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






35. Bound to adjacent atoms






36. Reduces ketone to alkane






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






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






39. Nucleophile adds to ketone (forming alcohol)






40. Highly reactive carbonyl






41. Differ in fixed geometrical arrangement of atoms






42. Differ in rotation about sigma bonds






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






44. Aldehyde / ketone synthesis






45. Cycloformation






46. Attach tosyl group onto alcohol






47. Splits an ether into alkyl halides






48. Reduces Ar-CH3 to -COOH






49. 2 Sulfide linkages in place of aldehyde






50. Replaces thioacetal/ketal with carbonyl