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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. Diol with hydroxyl group on same carbon






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






3. Combustion reaction occurs through a radical process






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






5. Name for mathanal






6. Refers to the =CH2 group






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






8. Transfer of electrions from one atome to another






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






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






11. 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.






12. Diols with hydroxyl group on adjacent carbon






13. Steps of free radical substitution






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






15. 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






16. 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.






17. Zn/h or CH3/s with ozonolysis






18. Hydrocarbon with one or more carbon carbon triple bond






19. Compounds with halogen






20. Charged - need electrons






21. 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






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






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






24. Goal is to produce most stable carbocation

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






26. Kmno4






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






28. Rotations cancel each other out therefore no optical activity






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






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






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






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






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






34. Non mirror image of configurational isomers. cis and trans alkenes are them. possible when a molecule has two or more stereogenic centers that differ at some but not alll of the centers. they require multiple chiral centers.






35. One s and two p 120 degree apart






36. Is bonded to only one other carbon atom






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






38. Name for ethanal






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






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






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






42. One s and three p orbitals






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






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






45. When boat flips






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






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






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






49. When bond angles deviate from ideal values






50. Not solvated