Unit 6 Objectives: Haloalkanes and Haloarenes Nomenclature and Reactions

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Questions and Answers

What is the result of replacing hydrogen atom(s) in an aliphatic hydrocarbon by halogen atom(s)?

  • Formation of ether
  • Formation of alcohol
  • Formation of alkyl halide (haloalkane) (correct)
  • Formation of aryl halide (haloarene)

Where are halogen atoms attached in haloalkanes and haloarenes?

  • Haloalkanes: attached to sp3 carbon atom; Haloarenes: attached to sp2 carbon atom (correct)
  • Haloalkanes: attached to sp hybridized carbon atom; Haloarenes: attached to sp3 carbon atom
  • Haloalkanes: attached to sp3 carbon atom; Haloarenes: attached to sp hybridized carbon atom
  • Haloalkanes: attached to sp2 carbon atom; Haloarenes: attached to sp3 carbon atom

Which system of nomenclature is used to name haloalkanes and haloarenes?

  • Stock system
  • IUPAC system (correct)
  • Sequential naming system
  • Common naming system

What is the product of replacing hydrogen atoms in an aromatic hydrocarbon by halogen atoms?

<p>Aryl halide (haloarene) (A)</p>
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What role does stereochemistry play in understanding the reaction mechanism of haloalkanes and haloarenes?

<p>It is used as a tool for understanding the reaction mechanism (D)</p>
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What are some common applications of organo-metallic compounds mentioned in the text?

<p>Solvents and starting materials for organic compound synthesis (A)</p>
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What is the IUPAC name for a dihaloalkane where both halogen atoms are attached to the same carbon atom?

<p>Geminal halide (B)</p>
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What is the IUPAC naming system for dihaloalkanes where the halogen atoms are attached to adjacent carbon atoms?

<p>Vicinal halides (B)</p>
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Which of the following is the IUPAC name for a dihaloalkane with the same type of halogen atoms?

<p>Alkylene dihalide (B)</p>
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What is the common name for a dihaloalkane where the halogen atoms are attached to adjacent carbon atoms?

<p>Alkylene dihalide (C)</p>
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What is the common name for a dihaloalkane where both halogen atoms are attached to the same carbon atom?

<p>Alkylidene halide (C)</p>
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Which one of the following reagents is preferred for the preparation of alkyl halides from alcohols?

<p>Thionyl chloride (B)</p>
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What is the order of reactivity of alcohols with a given haloacid?

<p>Tertiary &gt; Secondary &gt; Primary (B)</p>
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Which reagent is used for the preparation of alkyl iodides from alcohols?

<p>Both A and B (D)</p>
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What is the IUPAC name for CH3CH2CH2Br?

<p>1-Bromopropane (C)</p>
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Which halogen acid is used for the preparation of alkyl bromides from alcohols?

<p>Hydrobromic acid (48%) (B)</p>
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What is the IUPAC name for C6H5Cl?

<p>Chlorobenzene (A)</p>
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