Hydrocarbon
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Hydrocarbon

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Questions and Answers

What is the order of reactivity of halogen in the reaction of alkene with HX?

  • I2 > Br2 > Cl2 > F2
  • F2 > Cl2 > Br2 > I2 (correct)
  • Cl2 > F2 > Br2 > I2
  • Br2 > Cl2 > F2 > I2

    • What is the product of the reaction of propene with NBS?

  • 3-Chloro-1-propene
  • 1-Chloro-2-propene
  • Allyl bromide (correct)
  • Allyl chloride

    • What is the mechanism of the Birch reduction reaction?

  • Cationic free radical mechanism
  • Electrophilic addition mechanism
  • Anionic free radical mechanism (correct)
  • Nucleophilic substitution mechanism

    • What is the product of the reaction of ethylene with sulfuric acid?

    <p>Ethyl hydrogen sulfate</p> Signup and view all the answers

    What is the type of reaction involved in the reaction of alkene with HX?

    <p>Electrophilic addition reaction</p> Signup and view all the answers

    What is the primary function of Poison's catalyst in the Wittig reaction?

    <p>To stop the reaction after the formation of alkene</p> Signup and view all the answers

    Which reaction is used to form symmetrical alkenes?

    <p>Action of copper alkyl on vinyl chloride</p> Signup and view all the answers

    What is the primary difference between the reactions of vicinal dihalides and gem-dihalides?

    <p>The number of alkene products formed</p> Signup and view all the answers

    What is the reason for the formation of a trans product in majority when using alc.NaOH in place of KOH?

    <p>Due to the stability of the trans product</p> Signup and view all the answers

    What is the general trend of solubility of alkenes in water?

    <p>Alkenes are insoluble in water</p> Signup and view all the answers

    What is the primary reason why alkenes have higher dipole moments than alkanes?

    <p>Alkenes can be easily polarized</p> Signup and view all the answers

    What is the product of the reaction between an alkene and diborane?

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

    What is the reaction that involves the addition of water to an alkene in the presence of a peroxide?

    <p>Antimarkownikoff's addition</p> Signup and view all the answers

    What is the reaction that involves the conversion of an alkene into an alkane using hydrogen?

    <p>Reduction of alkene</p> Signup and view all the answers

    What is the product of the reaction between an alkene and silver nitrate?

    <p>Coupling product</p> Signup and view all the answers

    What is the catalyst used in the Wittig reaction?

    <p>(Ph)3P</p> Signup and view all the answers

    What is the physical state of most alkenes?

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

    What is the product formed when vinyl chloride reacts with copper alkyl?

    <p>R-CH=CHR</p> Signup and view all the answers

    What is the solvent used in the reaction of alkynes with alkyl cuprates?

    <p>Organic solvents</p> Signup and view all the answers

    What is the role of BaSO4 in the Wittig reaction?

    <p>Poison's catalyst</p> Signup and view all the answers

    What is the primary reason for the formation of vicinal dihalide in the reaction of alkene with halogen in the presence of a polar medium?

    <p>Stabilization of the transition state by the polar medium</p> Signup and view all the answers

    What is the major product formed in the reaction of alkene with sulphuric acid?

    <p>Alkyl hydrogen sulphate</p> Signup and view all the answers

    Which of the following is a characteristics of the reaction of alkene with HX, based on the Anti-Markownikoff rule?

    <p>The HX adds to the alkene in an anti-Markownikoff manner</p> Signup and view all the answers

    What is the primary function of NBS in the reaction of alkene with NBS?

    <p>To brominate the alkene at the allylic position</p> Signup and view all the answers

    What is the purpose of the reaction of alkene with sulphuric acid, in the context of separation of alkene from a gaseous mixture of alkanes and alkenes?

    <p>To separate alkene from a gaseous mixture of alkanes and alkenes</p> Signup and view all the answers

    What is the primary function of the Francis experiment?

    <p>To demonstrate the electrophilic character of bromine</p> Signup and view all the answers

    What is the result of the reaction of an alkene with diborane?

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

    What is the purpose of the reduction of alkene via hydroboration?

    <p>To convert an alkene into an alkane</p> Signup and view all the answers

    What is the reaction that involves the addition of water to an alkene in the presence of a peroxide?

    <p>Markovnikov's addition</p> Signup and view all the answers

    Why do alkenes have higher dipole moments than alkanes?

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

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