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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. Charged - need electrons






2. When bond angles deviate from ideal values






3. One s and three p orbitals






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






5. Monosubstituted ethylene






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






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






8. Combustion reaction occurs through a radical process






9. Kmno4






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






11. Di - tri - t - sec - n -






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






13. Steps of free radical substitution






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






15. Carbon carbon triple bonds. Suffix-yne.






16. N - l - ml - ms






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






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






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






20. Formed by mixing different types of orbitals






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






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






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






24. Is bonded to only one other carbon atom






25. Not solvated






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






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






28. Refers to the =CH2 group






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






30. Carbon double bonded to an oxygen






31. 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-






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






33. Iso - neo - cyclo






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






35. Transfer of electrions from one atome to another






36. A = observed rotation / concentration * length






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






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






39. 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






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. Functionality is specified by alkoxy- prefix. ROR






42. Sharing of electron between atoms






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






44. Highest energy no separation. or 120 separation.






45. 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






46. Alphabetical order of alkane rxn






47. Name for ethanal






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






50. Rotations cancel each other out therefore no optical activity