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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. Highest energy no separation. or 120 separation.






2. Refers to the =CH2 group






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






4. Zn/h or CH3/s with ozonolysis






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






6. 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






7. 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.






8. Functionality is specified by alkoxy- prefix. ROR






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






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






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






12. If reagent has a bunch of oxygen






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






14. Most favorable of staggared conformations






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






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






17. Diol with hydroxyl group on same carbon






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






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






20. A = observed rotation / concentration * length






21. When bond angles deviate from ideal values






22. 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






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






24. When boat flips






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






26. Alphabetical order of alkane rxn






27. Name for ethanal






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






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






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






31. A sigma bond and two pi bonds






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






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






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






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






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






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






38. Object that is not superimposable upon mirror image






39. Hydrocarbon with one or more carbon carbon triple bond






40. Charged - need electrons






41. 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






42. M - chloroperoxybenzoic acid






43. Methyl are 60 degrees apart. kinda stable






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






45. Carbon carbon triple bonds. Suffix-yne.






46. A molecule with an internal plane of symmetry






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






48. One s and two p 120 degree apart






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






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