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MCAT Organic Chemistry

Subjects : mcat, science
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • 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. Y = position of double bond - x is position of triple bond - root is the prefix representing the length of the principal carbon chain






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






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






4. Hydrocarbon with one or more carbon carbon triple bond






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






6. Two hydroxyl groups






7. A = observed rotation / concentration * length






8. 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






9. When bond angles deviate from ideal values






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






11. Compounds with halogen






12. 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






13. How many stereoisomers can a molecule have with n chiral centers






14. Functionality is specified by alkoxy- prefix. ROR






15. Diol with hydroxyl group on same carbon






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






17. Combustion reaction occurs through a radical process






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






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






20. Carbon double bonded to an oxygen






21. Refers to the =CH2 group






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






23. O3






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






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






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






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






28. Sharing of electron between atoms






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






30. 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






31. Is bonded to only one other carbon atom






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






33. F - CL - Br - I






34. Charged - need electrons






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






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






37. E of double bond act as lewis base and react with hydrogen of hx. make carbocation intermediate. use markonikovs rule






38. 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






39. Common name for ethyne






40. Monosubstituted ethylene






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






42. Transfer of electrions from one atome to another






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






44. Rotations cancel each other out therefore no optical activity






45. A sigma bond and two pi bonds






46. Object that is not superimposable upon mirror image






47. Goal is to produce most stable carbocation


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






49. Most favorable of staggared conformations






50. Lowest priority group projects into the page