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






2. Hydrocarbon with one or more carbon carbon triple bond






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






4. Functionality is specified by alkoxy- prefix. ROR






5. 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






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






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






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






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






10. What are the best leaving groups?






11. Rotations cancel each other out therefore no optical activity






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






13. Is bonded to only one other carbon atom






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






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






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






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

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






19. A molecule with an internal plane of symmetry






20. O3






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






22. One s and two p 120 degree apart






23. 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.






24. Di - tri - t - sec - n -






25. Alphabetical order of alkane rxn






26. Carbon double bonded to an oxygen






27. Compounds with halogen






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






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






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






31. Lowest priority group projects into the page






32. Sharing of electron between atoms






33. Charged - need electrons






34. Most favorable of staggared conformations






35. A = observed rotation / concentration * length






36. If reagent has a bunch of oxygen






37. Same molecular formula but different structure






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






39. Highest energy no separation. or 120 separation.






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






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






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






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






44. 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.






45. 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-






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






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






48. Steps of free radical substitution






49. One s and three p orbitals






50. Diols with hydroxyl group on adjacent carbon