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MCAT Organic Chemistry

Subjects : mcat, science
Instructions:
  • Answer 50 questions in 15 minutes.
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  • Match each statement with the correct term.
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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. What is produced when o3 with lialh4 or nabh4






2. A sigma bond and two pi bonds






3. Diols with hydroxyl group on adjacent carbon






4. Chain of carbons connected by single bonds with hydrogen atoms attached.






5. Nonsuperimposable mirror image of chiral objects - a specific steroisomer.






6. Name for mathanal






7. Common name for ethyne






8. When boat flips






9. Name for ethanal






10. Highest energy no separation. or 120 separation.






11. Carbonyl located at the end of the chain named by replacing al with e. e.g. butanal






12. Combustion reaction occurs through a radical process






13. Contain carbon carbon double bonds. Use same root of alkane but end with 'ene'






14. Compounds with halogen






15. Arise from angle strain - torsional strian and nonbonded strain






16. Methyl are 60 degrees apart. kinda stable






17. In which one or morehydrogen atoms are replaced with a halogen atom. via free radical substitution






18. Rotations cancel each other out therefore no optical activity






19. Functionality is specified by alkoxy- prefix. ROR






20. Transfer of electrions from one atome to another






21. Two p orbital form pi and third p orbital combine with s to make two sp hybrid. 180 degree apart






22. Object that is not superimposable upon mirror image






23. Same molecular formula but different structure






24. N - l - ml - ms






25. Differ in position of substitutents attached to a double bond or cycloalkane. Cis or trans or e or z






26. One s and two p 120 degree apart






27. No double bonds. it has the maximum number of hydrogens.






28. Two hydroxyl groups






29. Propylenes attached to a backbone at the C-3 position. Meaning the double bond at end of the chain and single bonded carbon at rest






30. Charged - need electrons






31. Carbonyl located in middle or somewhere in chane. Named with One






32. What are the best leaving groups?






33. Alkene oxidized with this - strong oxidizing agent. CH3CO3H or mcpba and it makes epoxide or oxirane






34. Goal is to produce most stable carbocation

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35. Carbon with four different substituents and lack a plane of symmetry






36. Name for propanal






37. Formed by mixing different types of orbitals






38. More likely it is to attract positively charged proton. nucleophilic strength decreses: RO->HO>RCO2>ROH>H2O






39. When a molecular orbital is formed head to head or tail to tail. all single bonds are tehese.






40. Nucleus lover. electron rich species that are attracked to charged atoms






41. Electrons of pi bond are reactive and easily attacked by molecules that want e pair e.g. electrophiles.






42. When two atomic orbitals combine. obtained mathematically by adding or subtracting wave functions. if sings are the same - make bonding - if different - less stable antibonding.






43. Nitrogen containing compound - longest chain attached to nitrogen used in backbone. use e and replace with AMINE. if more complex molecule present - use prefix amino. IF additional group added - use N-






44. Iso - neo - cyclo






45. Steps of free radical substitution






46. Three different substitutents often have plane of symmetry. and rotation of 180 will allow molecule to be superimposed on mirror image






47. Always receive number one. contain carbonyl and OH group - very oxidized. highest priority functional group.






48. When bond angles deviate from ideal values






49. Diol with hydroxyl group on same carbon






50. Most similar. same molecule only at different points in their rotation. show them with newmans projections







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