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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. Monosubstituted ethylene






2. Name for propanal






3. Lowest priority group projects into the page






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






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






6. Highest energy no separation. or 120 separation.






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






8. If reagent has a bunch of oxygen






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






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






11. Carbon double bonded to an oxygen






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






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






14. Compounds with halogen






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






16. 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.






17. 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






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






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






20. 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-






21. One s and three p orbitals






22. Common name for ethyne






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






24. Is bonded to only one other carbon atom






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






26. Methyl are 60 degrees apart. kinda stable






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






28. Name for mathanal






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






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






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






32. N - l - ml - ms






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






34. Rotations cancel each other out therefore no optical activity






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






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






37. Goal is to produce most stable carbocation

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






39. M - chloroperoxybenzoic acid






40. Refers to the =CH2 group






41. Same molecular formula but different structure






42. Steps of free radical substitution






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






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






45. Formed by mixing different types of orbitals






46. 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






47. What are the best leaving groups?






48. Carbon carbon triple bonds. Suffix-yne.






49. 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






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