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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. More substituted elimination; more stable






2. Can protect a ketone






3. OCH3






4. R-SO3H






5. Highly reactive carbonyl






6. Tertiary carbocation formed; relieved by deprotonation






7. Formation of salcohol from alkene






8. Elimination to form alkene






9. Formation of ethoxide






10. Aldehyde / ketone synthesis






11. Anti-alignment required






12. Ch2I2 - Zn(Cu)






13. 4-pi system + 2-pi system --> Ring formation






14. Non-superimposable mirror image






15. Forms carboxylic acid; releases N






16. Oxirane ring opening






17. CH2-






18. Tertiary carbon center; racemic






19. Cycloformation






20. Less hindered carbon center; chiral inversion






21. Reacts with alkene to form oxirane






22. Reduces one bond of benzene ring






23. Benzaldehyde






24. H2O2






25. Differ in position of atoms






26. Bound to same atom






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






28. Reduces Ar-CH3 to -COOH






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






30. Replaces thioacetal/ketal with carbonyl






31. Nucleophile adds to ketone (forming alcohol)






32. Differ in fixed geometrical arrangement of atoms






33. Splits an ether into alkyl halides






34. Oxidize to -COOH






35. Cyclic ether






36. Reduces ketone to alkane






37. Less substituted elimination; sterically hindered






38. Differ in rotation about sigma bonds






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






40. Attach tosyl group onto alcohol






41. Donate electrons to aromatic ring






42. 2 Sulfide linkages in place of aldehyde






43. Bound to adjacent atoms






44. Cis/trans Isomers






45. Chiral - with superimposable mirror image






46. Split an alkene into 2 carbonyls






47. R2C=N-OH






48. Ph-NH2






49. Alcohol closes ring to form oxirane






50. Allylic Substitution