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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. 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-






2. One s and three p orbitals






3. Sharing of electron between atoms






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






5. A molecule with an internal plane of symmetry






6. 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






7. Refers to the =CH2 group






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






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






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






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






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






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






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






15. F - CL - Br - I






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






17. Formed by mixing different types of orbitals






18. Combustion reaction occurs through a radical process






19. Name for propanal






20. Kmno4






21. 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






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






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






25. 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






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






27. What is produced when o3 with lialh4 or nabh4






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






29. Rotations cancel each other out therefore no optical activity






30. M - chloroperoxybenzoic acid






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






32. Name for ethanal






33. Steps of free radical substitution






34. Goal is to produce most stable carbocation

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






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






37. Monosubstituted ethylene






38. 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






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






40. 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.






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






42. Diols with hydroxyl group on adjacent carbon






43. Methyl are 60 degrees apart. kinda stable






44. Name for mathanal






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






46. Zn/h or CH3/s with ozonolysis






47. When bond angles deviate from ideal values






48. 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.






49. If reagent has a bunch of oxygen






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