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

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2. Monosubstituted ethylene






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






4. Zn/h or CH3/s with ozonolysis






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






6. 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-






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






8. When a molecular orbital is formed head to head or tail to tail. all single bonds are tehese.






9. Most favorable of staggared conformations






10. 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.






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






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






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






14. 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






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






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






17. Iso - neo - cyclo






18. A = observed rotation / concentration * length






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






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






21. Object that is not superimposable upon mirror image






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






23. Di - tri - t - sec - n -






24. Compounds with halogen






25. N - l - ml - ms






26. Kmno4






27. What is produced when o3 with lialh4 or nabh4






28. Hydrocarbon with one or more carbon carbon triple bond






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






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






31. Contain carbon carbon double bonds. Use same root of alkane but end with 'ene'






32. Carbon double bonded to an oxygen






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






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






35. Sharing of electron between atoms






36. When boat flips






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






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






39. Rotations cancel each other out therefore no optical activity






40. Name for mathanal






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






42. When bond angles deviate from ideal values






43. Same molecular formula but different structure






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






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






47. 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.






48. Diols with hydroxyl group on adjacent carbon






49. Not solvated






50. Combustion reaction occurs through a radical process