ML 126 Bio-Organic Chemistry Exam 1 – Flashcards
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| There are 4 groups distributed about the carbon atom. What is the bond angle? |
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| 109.5° |
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| What is the functional group of a carboxylic acid? |
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| COOH |
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| The compounds 2,3-dimethylpentane, 3-ethylpentane, and 3-methlyhexane have what in common? |
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| they are all isomers of one another |
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| A compound is named 2-propyl-1-butene. What would the correct IUPAC name be? |
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| 2-ethyl-1-pentane |
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| 2-bromo-2-methlybutane is formed as a result of what reaction? |
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| in the hydrobromination of 2-methly-2-butene |
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| In a hydration reaction, what acts as a catalyst? |
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| sulfuric acid |
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| What is the product in the reduction of nitrobenzene? |
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| aniline |
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| Describe the bond polarities of C-O and O-H bonds. |
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| both are polar, but C-O is less polar |
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| 2,3-dimethyl-2-pentene is obtained from this reaction: |
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| dehydration reaction of 2,3-dimethyl-3-pentanol |
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| The loss of hydrogen best describes the oxidation reaction in: |
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| oxidation of thiols to disulfides |
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| Consider the hormone, progesterone, which has 3 stereocenters. How many stereoisomers are possible? |
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| 8 stereoisomers possible (2n rule) |
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| Name some characteristics of organic compounds: |
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| insoluble in water, covalently bonded, slow reactions |
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| The prefix "meta" would be used in a benzene ring: |
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| when naming the substituents on a benzene ring at carbon 1 and carbon 3 |
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| Name some true facts about benzene and its derivatives: |
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| formula is C6H6, phenol is weak acid, extra stability is provided by the resonance structure of benzene |
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| An aldehyde and/or a carbolic acid are formed when this compound is oxidized: |
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| primary alcohol |
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| What defines a tertiary amine? |
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| 3 carbon atoms attached to the nitrogen atom |
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| An example of a saturated hydrocarbon: |
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| alkane |
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| Characteristics of butane and 2-methylpropane: |
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| same formula weight, but different chemical and physical properties |
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| This compound, of the molecular formula C3H3Br has cis-trans isomers: |
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| 1-bromopropene |
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| The product in this chlorination reaction is 1,2-dichloro-2-methylbutane: |
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| obtained as a result of the chlorination of 2-methyl-1-butane |
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| The functional group of an aldehyde is: |
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| -CHO |
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| The hydroxyl groups in the this compound are primary and tertiary: |
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| 2-methyl-1,2-propanediol |
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| The highest boiling point is exhibited by this alcohol: |
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| 1,3,4-pentanetriol |
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| An undesirable product of the oxidation of primary alcohols is: |
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| aldehydes may be produced in an uncontrolled reaction |
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| The statement all dextrorotatory compounds are (+) describes what relationship: |
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| describes the relationship between the dextro/levo system and the +/- dystem in optically active compounds. |
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| Substitution of a halogen for a hydrogen and combustion reactions are common in this type of hydrocarbon: |
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| alkanes |
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| Please describe ethers: |
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| name a simple ether by naming the two groups attached to the oxygen and add the word ether; boiling points are much less than in comparable molecular weight alcohols; is chemically inert making it a good solvent |
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| Reactions of benzene and its derivatives: |
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| substitution reactions: halogenation using iron catalyst, nitration using nitric acid and sulfuric acid with heat, and sulfonantion using sulfuric acid and heat |
