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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. Methyl are 60 degrees apart. kinda stable






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






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






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






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






6. Iso - neo - cyclo






7. Kmno4






8. 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






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






10. Formed by mixing different types of orbitals






11. Same molecular formula but different structure






12. Carbon carbon triple bonds. Suffix-yne.






13. What is produced when o3 with lialh4 or nabh4






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






15. When bond angles deviate from ideal values






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


17. 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.






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






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






20. Diol with hydroxyl group on same carbon






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






22. 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






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






24. M - chloroperoxybenzoic acid






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






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. Refers to the =CH2 group






28. F - CL - Br - I






29. Name for ethanal






30. Two hydroxyl groups






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






32. Compounds with halogen






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






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






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






36. 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.






37. Monosubstituted ethylene






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






39. Most favorable of staggared conformations






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






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






42. Lowest priority group projects into the page






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






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






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






46. Name for mathanal






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






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






49. What are the best leaving groups?






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