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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. Lowest priority group projects into the page






2. 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






3. 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.






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






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






6. One s and two p 120 degree apart






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






8. Not solvated






9. Compounds with halogen






10. A = observed rotation / concentration * length






11. Methyl are 60 degrees apart. kinda stable






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






13. Two hydroxyl groups






14. O3






15. Rotations cancel each other out therefore no optical activity






16. Refers to the =CH2 group






17. Carbon double bonded to an oxygen






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

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19. N - l - ml - ms






20. 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






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






22. Steps of free radical substitution






23. One s and three p orbitals






24. Goal is to produce most stable carbocation

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






26. Sharing of electron between atoms






27. What is produced when o3 with lialh4 or nabh4






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






29. Highest energy no separation. or 120 separation.






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






31. Functionality is specified by alkoxy- prefix. ROR






32. What are the best leaving groups?






33. Charged - need electrons






34. Most similar. same molecule only at different points in their rotation. show them with newmans projections






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






36. Formed by mixing different types of orbitals






37. When boat flips






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






39. Carbon carbon triple bonds. Suffix-yne.






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






41. Combustion reaction occurs through a radical process






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






43. Diol with hydroxyl group on same carbon






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






45. Common name for ethyne






46. 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.






47. Name for ethanal






48. Object that is not superimposable upon mirror image






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. When bond angles deviate from ideal values