Organic Chemistry Quiz
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Questions and Answers

What is the hybridization state and geometry of methane?

  • sp3 Trigonal planar
  • sp Linear
  • sp3 Tetrahedral (correct)
  • sp2 Planar

    • Which of the following describes alkenes?

  • Are saturated with hydrogens
  • Are comprised of aromatic rings
  • Contain only single bonds
  • Contain at least one double bond (correct)

    • Which functional group is represented by -COOH?

  • Amine
  • Aldehyde
  • Carboxylic Acid (correct)
  • Ester

    • What type of hybridization is associated with a trigonal planar geometry?

    <p>sp2 Trigonal planar</p> Signup and view all the answers

    Which class of hydrocarbons includes compounds with only single bonds?

    <p>Alkanes</p> Signup and view all the answers

    Which functional group includes compounds with a nitrogen atom?

    <p>Amine</p> Signup and view all the answers

    What characterizes saturated hydrocarbons?

    <p>Are lacking double or triple bonds</p> Signup and view all the answers

    What is the main distinguishing feature of alkynes?

    <p>Presence of triple bonds</p> Signup and view all the answers

    What is the longest continuous chain of carbon atoms in an alkane called?

    <p>Parent chain</p> Signup and view all the answers

    In the name '3-ethyl-2,4-dimethylheptane', what does 'heptane' signify?

    <p>The length of the parent chain</p> Signup and view all the answers

    How should numbers be assigned when determining the location of branched groups on the parent chain?

    <p>From the end closest to the branching</p> Signup and view all the answers

    What is indicated by the prefix 'dimethyl' in a compound name?

    <p>There are two methyl branches</p> Signup and view all the answers

    Which of the following correctly describes a normal alkane?

    <p>It has a continuous chain of carbon atoms</p> Signup and view all the answers

    What does the suffix 'ane' in an alkane name imply?

    <p>The alkane is saturated</p> Signup and view all the answers

    Which of the following is true about 2,2-dimethylpentane?

    <p>It has five carbon atoms in the parent chain</p> Signup and view all the answers

    What does the number '2' in the name '2-methyl' indicate?

    <p>The position of the methyl group on the second carbon</p> Signup and view all the answers

    What is the correct ending for alkanes?

    <p>-ane</p> Signup and view all the answers

    Which of the following represents a propyl group?

    <p>CH3CH2CH2-</p> Signup and view all the answers

    How should the parent chain be numbered?

    <p>Sequentially from either end, minimizing numbers for substituents.</p> Signup and view all the answers

    Which group is identified by the prefix 'Fluoro'?

    <p>Fluorine</p> Signup and view all the answers

    Which of the following is an example of a two-carbon alkane?

    <p>Ethane</p> Signup and view all the answers

    What is the common name for CH3CH2CH2CH3?

    <p>Butane</p> Signup and view all the answers

    What is the correct way to indicate a methyl group in chemical structures?

    <p>CH3-</p> Signup and view all the answers

    In the name '3-ethylpentane', what does the '3-' indicate?

    <p>The position of the ethyl substituent on the parent chain.</p> Signup and view all the answers

    What is the general formula for alkenes?

    <p>CnH2n</p> Signup and view all the answers

    Which term is used to describe hydrocarbons containing at least one carbon-carbon triple bond?

    <p>Alkynes</p> Signup and view all the answers

    How is the lowest numbered carbon atom in a double bond represented in the nomenclature of alkenes with more than three carbons?

    <p>It is assigned a number in the name</p> Signup and view all the answers

    Which of the following is an example of a cis isomer?

    <p>CH3-CH=CH-CH3 (cis)</p> Signup and view all the answers

    What happens to weaker $ ext{π}$ bonds during addition reactions of alkenes?

    <p>They are broken to form new stronger $ ext{σ}$ bonds</p> Signup and view all the answers

    Which structural change can result from dehydrogenation of alkenes?

    <p>Formation of double bonds between adjacent carbons</p> Signup and view all the answers

    In cis-trans isomerism, what feature of the molecules restricts rotation around the bond?

    <p>The presence of a double bond</p> Signup and view all the answers

    What suffix is used for the parent hydrocarbon name of an alkene?

    <p>-ene</p> Signup and view all the answers

    What are the products of the reaction between phenyl butyrate and hydroxide ion?

    <p>Butyrate ion and phenol</p> Signup and view all the answers

    What is formed when carboxylic acids react with amines?

    <p>Amides</p> Signup and view all the answers

    Which characteristic defines a chiral carbon?

    <p>It has four different groups attached</p> Signup and view all the answers

    Which of the following accurately describes optical isomers?

    <p>Molecules that can rotate light in one direction only</p> Signup and view all the answers

    Why are many pharmaceuticals chiral?

    <p>Only one enantiomer is clinically active</p> Signup and view all the answers

    Which of the following reactions involves the addition of hydrogen to a carbon-carbon double bond?

    <p>Hydrogenation</p> Signup and view all the answers

    What is the suffix used in IUPAC nomenclature for alkynes?

    <p>-yne</p> Signup and view all the answers

    What is the IUPAC name for the compound CH3CH2C≡CCH3?

    <p>2-pentyne</p> Signup and view all the answers

    In the process of halogenation, which atoms are added to the carbon double bond?

    <p>Halogens</p> Signup and view all the answers

    Which of the following compounds is an alkyne?

    <p>Propyne</p> Signup and view all the answers

    Which structure correctly represents 1,2-dibromopentane?

    <p>CH3CHBrCH2CH2Br</p> Signup and view all the answers

    Which statement describes how to number the carbon chain for naming alkenes and alkynes?

    <p>Number to give the lowest numbers to the double or triple bonds.</p> Signup and view all the answers

    What is the main characteristic of alkenes?

    <p>They contain a carbon-carbon double bond.</p> Signup and view all the answers

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