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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. Combustion reaction occurs through a radical process






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






3. Name for propanal






4. A sigma bond and two pi bonds






5. N - l - ml - ms






6. What are the best leaving groups?






7. Same chemical formula. same atomic connectivity . different in how atoms are arranged in space






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






9. Compounds with halogen






10. Diols with hydroxyl group on adjacent carbon






11. Occur when a molecule is broken down by heat. used to reduce the avverage molecular weight of heavy oils. c - c - bonds are cleave dand make small chain alkyl radicals that recombine to form different alkanes






12. Alphabetical order of alkane rxn






13. Carbon carbon triple bonds. Suffix-yne.






14. Is bonded to only one other carbon atom






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






16. Moleculse that have the opposite configuration at their one chiral center. or if multiple chiral centers - must have the opposite configuration at every one of their chiral centers to be enantiomers. identical physical properties and much of the same






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






18. Highest energy no separation. or 120 separation.






19. 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-






20. If a compound is able to rotate plane polarized light.






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






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






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






24. Lowest priority group projects into the page






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






26. Most favorable of staggared conformations






27. Carbon double bonded to an oxygen






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






29. Palladium or barium sulfate (BaSO4) with quinoline. occur on metal surface - make cis.

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






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






32. Object that is not superimposable upon mirror image






33. Solvents with protons in solution - e.g. water or alcohol. large atoms tend to be better nucleophiles in here because they can shed the solvating protons around them and are more polarizable






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






35. Two hydroxyl groups






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






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






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






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






40. Same molecular formula but different structure






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






42. When bond angles deviate from ideal values






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






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






45. A = observed rotation / concentration * length






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






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






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






49. Name for ethanal






50. Charged - need electrons