Halogen Containing Compounds
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Questions and Answers

Which of the following solvents would favour the SN1 mechanism?

  • Non-polar aprotic solvents (correct)
  • Polar aprotic solvents
  • Non-polar protic solvents
  • Polar protic solvents

    • What is the order of nucleophilicity among halide ions?

  • F– > Cl– > Br– > I–
  • Cl– > Br– > I– > F–
  • I– > Br– > Cl– > F– (correct)
  • F– > I– > Br– > Cl–

    • What is the major product of an SN1 reaction?

  • A mixture of inverted and retained products
  • A retained product
  • A racemic mixture (correct)
  • An inverted product

    • Which of the following is an example of an elimination reaction?

    <p>Reaction of an alkyl halide with NaOH</p> Signup and view all the answers

    What is the mechanism of nuclear halogenation?

    <p>Electrophilic substitution ID mechanism</p> Signup and view all the answers

    What is the primary reason for the reactivity of the halogen atom in allyl halides?

    <p>Due to the ionisation to yield a carbonium ion which can stabilize by resonance</p> Signup and view all the answers

    What type of reactions occur with NaOH and KCN?

    <p>Nucleophilic substitution reactions</p> Signup and view all the answers

    What is the correct order of reactivity of alkyl halides?

    <p>Iodide &gt; Bromide &gt; Chloride</p> Signup and view all the answers

    What is the effect of resonance stabilization on the carbon-chlorine bond in vinyl chloride?

    <p>It gives the bond some double bond character</p> Signup and view all the answers

    What is the reaction that involves the conversion of an alkene to an alcohol?

    <p>Hydrolysis of alkyl bromide</p> Signup and view all the answers

    What is the difference in the bond length of carbon-halogen bonds in vinyl chloride and alkyl halides?

    <p>The bond length is shorter in vinyl chloride</p> Signup and view all the answers

    What type of hybridization is present in the carbon atom in allyl halides?

    <p>sp2 hybridization</p> Signup and view all the answers

    What is the type of reaction where the C δ site is susceptible to attack by nucleophiles?

    <p>Nucleophilic substitution reaction</p> Signup and view all the answers

    What is the reason for the high reactivity of alkyl halides?

    <p>Due to the large difference in the electronegativities of carbon and halogen atoms</p> Signup and view all the answers

    What is the reaction that involves the formation of a dihalide?

    <p>Swart reaction</p> Signup and view all the answers

    What is the effect of bulky groups in the formation of transition state?

    <p>Causes steric hindrance</p> Signup and view all the answers

    What is the order of reactivity among alkyl halides with different halogens?

    <p>RI &gt; RBr &gt; RCl</p> Signup and view all the answers

    What is the product of the reaction between an alkyl halide and sodium acetylide?

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

    What is the result of the reaction between an alkyl halide and sodium sulphide?

    <p>Formation of a thioether</p> Signup and view all the answers

    What is the effect of heat on the reaction of alkyl halides?

    <p>Forms an alkene</p> Signup and view all the answers

    What is the primary mechanism by which alkyl halides undergo reduction with nascent hydrogen?

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

    What is the effect of inductive effect in elimination reactions?

    <p>It propagates the positive charge to the neighbouring carbon atoms</p> Signup and view all the answers

    What is the product formed when alkyl halides undergo Friedel-Craft's reaction with benzene?

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

    What is the condition required for further halogenation of alkyl halides?

    <p>Presence of sunlight, heat energy or peroxide</p> Signup and view all the answers

    What is the similarity between alkyl lithiums and Grignard reagents?

    <p>They are both reactive reagents</p> Signup and view all the answers

    What is the reason for the formation of a small negative charge on the halogen atom in alkyl halides?

    <p>Due to the high electronegativity of the halogen atom</p> Signup and view all the answers

    Which of the following reaction mechanisms is characterized by the formation of a transition state?

    <p>Both SN1 and SN2</p> Signup and view all the answers

    What is the result of the reaction between an alkyl halide and sodium or potassium hydrogen sulphide?

    <p>Formation of a thioalcohol or alkanethiol</p> Signup and view all the answers

    Which of the following reactions is an example of a nucleophilic substitution reaction?

    <p>Reaction between an alkyl halide and ammonia</p> Signup and view all the answers

    What is the order of reactivity of primary alkyl halides?

    <p>CH3X &gt; C2H5X &gt; C3H7X</p> Signup and view all the answers

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