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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.
  • 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. Diol with hydroxyl group on same carbon






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






3. Is bonded to only one other carbon atom






4. When boat flips






5. Compounds with halogen






6. Solvents with protons in solution - e.g. water or alcohol. large atoms tend to be better nucleophiles in here because they can shed the solvating protons around them and are more polarizable






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






8. Not solvated






9. Steps of free radical substitution






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






11. 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






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






13. If reagent has a bunch of oxygen






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. Common name for ethyne






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






17. Kmno4






18. N - l - ml - ms






19. 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-






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






21. In presence of peroxide - oxygen or ultraviolet light. antimarkonikov because they want a stable free radical. therefore X ends up on least subsituted carbon






22. O3






23. Functionality is specified by alkoxy- prefix. ROR






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






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






26. Reaction of alkane with oxygen to form carbon dioxide - water and heat.






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






28. What are the best leaving groups?






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






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






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






33. Alphabetical order of alkane rxn






34. 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.






35. Formed by mixing different types of orbitals






36. A sigma bond and two pi bonds






37. F - CL - Br - I






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






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






40. Rotations cancel each other out therefore no optical activity






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






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






43. Refers to the =CH2 group






44. 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.






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






46. Combustion reaction occurs through a radical process






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






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






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






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







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