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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.
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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. F - CL - Br - I






2. Name for mathanal






3. Monosubstituted ethylene






4. Results when nonadjacent atoms or groups compete for space. dominant source of energy in flagpole interactions of the boat conformation. thus it goes in various conformations like chair boat and twist.






5. Kmno4






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






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






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






9. 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.






10. Zn/h or CH3/s with ozonolysis






11. Two hydroxyl groups






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






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






14. Goal is to produce most stable carbocation

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






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






17. 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-






18. Transfer of electrions from one atome to another






19. A = observed rotation / concentration * length






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






21. Carbon carbon triple bonds. Suffix-yne.






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






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






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






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






26. Carbon double bonded to an oxygen






27. 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






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






29. Hydrocarbon with one or more carbon carbon triple bond






30. One s and three p orbitals






31. Compounds with halogen






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






33. O3






34. Same molecular formula but different structure






35. Diols with hydroxyl group on adjacent carbon






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






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






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






39. 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






40. Name for ethanal






41. Sharing of electron between atoms






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






43. 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






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






45. Common name for ethyne






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






47. Configuration in relation to another chiral molecule. use it to determine if a molecule is an enantiomer - diastereomer - etc






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






49. A sigma bond and two pi bonds






50. N - l - ml - ms