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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. Iso - neo - cyclo






2. Carbon carbon triple bonds. Suffix-yne.






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






4. Transfer of electrions from one atome to another






5. O3






6. Carbon double bonded to an oxygen






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






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






9. Two hydroxyl groups






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






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






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






13. 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






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






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






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






17. Compounds with halogen






18. Highest energy no separation. or 120 separation.






19. Name for ethanal






20. Combustion reaction occurs through a radical process






21. Common name for ethyne






22. Functionality is specified by alkoxy- prefix. ROR






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






24. Lowest priority group projects into the page






25. Object that is not superimposable upon mirror image






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






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






28. 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.






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






30. Not solvated






31. Name for propanal






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






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






34. Sharing of electron between atoms






35. 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.






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






37. Same molecular formula but different structure






38. 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






39. Alphabetical order of alkane rxn






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. 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






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






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






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






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






46. Is bonded to only one other carbon atom






47. What are the best leaving groups?






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






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






50. Name for mathanal