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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.
  • 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. Describes the exact spatial arrangement of groups of atoms independent of other molecules.






2. Is bonded to only one other carbon atom






3. N - l - ml - ms






4. One s and three p orbitals






5. A radical transfers a hydrogen atom to another radical and makes an alkane and alkene






6. Diborane add to double bond. boron acts as lewis acid and attaches to less hindered carbon. hydride transferred to adjacent carbon. antimarkonikov - alcohol produced






7. A = observed rotation / concentration * length






8. Use the Greek root for the number of carbons followed by the ending - - ane






9. When bond angles deviate from ideal values






10. A molecule with an internal plane of symmetry






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






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






13. Reaction of alkane with oxygen to form carbon dioxide - water and heat.






14. Diol with hydroxyl group on same carbon






15. Results when cyclic molecules must assume conformations that have eclipsed interactions






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






17. Cleaves double bond in half - it only oxidizes the carbon to an aldehyde under reducing conditions. if ozidizing make same product as KMNO4






18. Transfer of electrions from one atome to another






19. A sigma bond and two pi bonds






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






21. Share molecular formula but have different chemical and physical properties






22. In presence of peroxide - oxygen or ultraviolet light. antimarkonikov because they want a stable free radical. therefore X ends up on least subsituted carbon






23. 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.






24. Most favorable of staggared conformations






25. Alkenes oxidzed with kmno4 - if made with cold - dilue - make OH on each side of double bond - diols or glycol in syn orientation






26. Reducing an alkene by adding molecular hydrogen to double bond with aid of metal catalyst. e.g. pt - pd - ni. takes place on surface of metal so it does syn addition






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






28. Goal is to produce most stable carbocation

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29. F - CL - Br - I






30. Results when nonadjacent atoms or groups compete for space. dominant source of energy in flagpole interactions of the boat conformation. thus it goes in various conformations like chair boat and twist.






31. Water can be added to alkenes under acidic conditions. make carbocation. ends with alcohol






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






33. When two p orbitals line up in parallel and electron clouds overlap. it exsits over a single bond.






34. Diols with hydroxyl group on adjacent carbon






35. Name for propanal






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






37. 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






38. 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-






39. Common name for ethyne






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






41. Ozonolysis under hot acidic kmO4 - e.g. H2O2 condition






42. Fast process. double bond is nucleophile and attack x2. make cyclic halonium ion with either br or cl. and make dihalo trans






43. Combustion reaction occurs through a radical process






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






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






46. Carbon carbon triple bonds. Suffix-yne.






47. Object that is not superimposable upon mirror image






48. What is produced when o3 with lialh4 or nabh4






49. Zn/h or CH3/s with ozonolysis






50. Spatial arrangement of the atoms or groups of a sterioisomer







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