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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. A molecule with an internal plane of symmetry






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






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






4. Carbon double bonded to an oxygen






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






6. Not solvated






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






9. Iso - neo - cyclo






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






11. What are the best leaving groups?






12. Functionality is specified by alkoxy- prefix. ROR






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






14. 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






15. Diol with hydroxyl group on same carbon






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






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






18. Kmno4






19. Di - tri - t - sec - n -






20. Is bonded to only one other carbon atom






21. When bond angles deviate from ideal values






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






23. Name for propanal






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






25. Name for ethanal






26. Two hydroxyl groups






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






28. 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






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






30. 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






31. Refers to the =CH2 group






32. Most favorable of staggared conformations






33. Formed by mixing different types of orbitals






34. M - chloroperoxybenzoic acid






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






36. Hydrocarbon with one or more carbon carbon triple bond






37. Steps of free radical substitution






38. Sharing of electron between atoms






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






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






41. Name for mathanal






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






43. N - l - ml - ms






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






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






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






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






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






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






50. Alphabetical order of alkane rxn