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






2. What is produced when o3 with lialh4 or nabh4






3. If reagent has a bunch of oxygen






4. Alphabetical order of alkane rxn






5. Carbon carbon triple bonds. Suffix-yne.






6. What are the best leaving groups?






7. When bond angles deviate from ideal values






8. Transfer of electrions from one atome to another






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






10. Name for mathanal






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






12. Iso - neo - cyclo






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






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






15. 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.






16. Name for ethanal






17. Y = position of double bond - x is position of triple bond - root is the prefix representing the length of the principal carbon chain






18. Nonterminal alkenes are cleaved to form two molar equivalent of carvoxylic acid ..make keton






19. Refers to the =CH2 group






20. 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-






21. Functionality is specified by alkoxy- prefix. ROR






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






23. A sigma bond and two pi bonds






24. M - chloroperoxybenzoic acid






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






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






27. Steps of free radical substitution






28. Kmno4






29. Diol with hydroxyl group on same carbon






30. Formed by mixing different types of orbitals






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






32. Goal is to produce most stable carbocation

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






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






35. Configuration in relation to another chiral molecule. use it to determine if a molecule is an enantiomer - diastereomer - etc






36. Same molecular formula but different structure






37. N - l - ml - ms






38. Hydrocarbon with one or more carbon carbon triple bond






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






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






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






42. Creation of long - high molecular weight polymer composed of repeating subunit called monomers. occur through a radical mechanism.






43. Di - tri - t - sec - n -






44. Object that is not superimposable upon mirror image






45. Diols with hydroxyl group on adjacent carbon






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






47. Most favorable of staggared conformations






48. Name for propanal






49. Charged - need electrons






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