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Haloalkanes and Haloarenes

38 questions · Chemistry · NEET
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Haloalkanes and Haloarenes

38 questions · Chemistry · NEET

  1. The major product of the following reaction is Includes diagram2025 · Q135 · MCQ
  2. Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : undergoes SN​2 reaction faster than Reason (R) : lodine is a better leaving group because of its large size. In… Includes diagram2025 · Q98 · Multiple correct
  3. The compound that will undergo SN1 reaction with the fastest rate is2024 · Q106 · MCQ
  4. Identify the major product C formed in the following reaction sequence : CH3​−CH2​−CH2​−INaCN​A Partialhydrolysis⟶OH−​BBr2​⟶NaOH​(major)C​…2024 · Q146 · MCQ
  5. The major product C in the below mentioned reaction is: CH3​CH2​CH2​Br alc. KOHΔ​AHBr​B aq. KOHΔ​C…2024 · Q127 · MCQ
  6. The following reaction method is not suitable for the preparation of the corresponding haloarene products, due to high reactivity of halogen, when X is : Includes diagram2024 · Q144 · MCQ
  7. Which amongst the following reactions of alkyl halides produces isonitrile as a major product? (A) R−X+HCN→ (B) R−X+AgCN→ (C) R−X+KCN→ (D) R−X+NaCNC2​H5​OH⟶H2​O​…2023 · Q103 · MCQ
  8. Choose the correct sequence of reagents in the conversion of 4-nitrotoluene to 2-bromotoluene.2023 · Q117 · MCQ
  9. Identify the product in the following reaction Includes diagram2023 · Q118 · MCQ
  10. Identify 'X' in the following reaction. Includes diagram2023 · Q124 · MCQ
  11. The given compound is an example of _________. Includes diagram2023 · Q110 · MCQ
  12. The major product formed in dehydrohalogenation reaction of 2-Bromo pentane is Pent-2-ene. This product formation is based on?2021 · Q105 · MCQ
  13. The major product of the following chemical reaction is : Includes diagram2021 · Q96 · MCQ
  14. Which of the following alkane cannot be made in good yield by Wurtz reaction?2020 · Q91 · MCQ
  15. Elimination reaction of 2-Bromo-pentane to form pent-2-ene is : (A) β-Elimination reaction (B) Follows Zaitsev rule (C) Dehydrohalogenation reaction (D) Dehydration reaction2020 · Q99 · MCQ
  16. The compound C7H8 undergoes the following reactions : The product ‘C’ is Includes diagram2018 · Q92 · MCQ
  17. Identify A and predict the type of reaction. Includes diagram2017 · Q118 · MCQ
  18. Which of the following biphenyls is optically active ?2016 · Q109 · MCQ
  19. Consider the reaction, CH3CH2CH2Br + NaCN → CH3CH2CH2CN + NaBr This reaction will be the fastest in2016 · Q117 · MCQ
  20. In an SN1 reaction on chiral centers, there is2015 · Q106 · MCQ
  21. The reaction of C6H5CH = CHCH3 with HBr produces2015 · Q84 · MCQ
  22. Which of the following compounds will undergo racemisation when solution of KOH hydrolyses? Includes diagram2014 · Q117 · MCQ
  23. In the replacement reaction The reaction will be most favourable if M happens to be Includes diagram2012 · Q75 · MCQ
  24. Consider the reactions. The mechanisms of reactions (i) and (ii) are respectively Includes diagram2011 · Q73 · MCQ
  25. Which of the following compounds undergoes nucleophilic substitution reaction most easily?2011 · Q75 · MCQ
  26. In the following reaction the product 'X' is Includes diagram2010 · Q62 · MCQ
  27. Which one is most reactive towards SN1 reaction?2010 · Q134 · MCQ
  28. The correct order of increasing reactivity of C−X bond towards nucleophile in the following compounds is Includes diagram2010 · Q135 · MCQ
  29. Which of the following reactions is an example of nucleophilic substitution reaction?2009 · Q125 · MCQ
  30. In a SN2 substitution reaction of the type R − Br + Cl− DMF​ R−Cl + Br− which one of the following has the highest relative rate?2008 · Q88 · MCQ
  31. CH3 − CHCl − CH2 − CH3 has a chiral centre. Which one of the following represents its R-configuration?2007 · Q103 · MCQ
  32. Which of the following is not chiral?2006 · Q123 · MCQ
  33. Which of the following undergoes nucleophilic substitution exclusively by SN1 mechanism?2005 · Q106 · MCQ
  34. Which of the following is least reactive in a nucleophilic sibstitution reaction?2004 · Q115 · MCQ
  35. Reactivity order of halides for dehydrologenation is2002 · Q126 · MCQ
  36. Z in the above reaction sequence is Includes diagram2002 · Q127 · MCQ
  37. An organic compound A(C4H9Cl) on reaction with Na/diethyl ether gives a hydrocarbon which on monochlorination gives only one chloro derivative then, A is2001 · Q85 · MCQ
  38. obtained by chlorination of n-butane will be Includes diagram2001 · Q86 · MCQ