Nucleophilic Substitution Reaction MCQ

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• What will be the correct order of SN2/E2 ratio for the %yield of the product of the following halide?
  ক

  III > IV > II > I

  খ

  III > II > IV > I

  গ

  I > III > IV > II

  ঘ

  II > I > III > IV
• Which statement is incorrect about the following reaction? and b) Loss of optical activity was twice as fast as the gain of radioactivity c) Each molecule undergoing substitution suffers Inversion of configuration d) The Final solution has radioactive iodine only
  ক

  The rate of these reaction depends on both and

  খ

  R—I

  গ

  R—I

  ঘ

  R—I
• SN1 reaction undergoes through a carbocation intermediate as follows: (X = Cl, Br, I) The correct statements are: I. The decreasing order of rate of SN1reaction is t-BuX > iso-PrX > EtX > MeX II. The decreasing order of ionization energy is MeX > EtX > iso-PrX > t-BuX III. The decreasing order of energy of activation is t-BuX > iso-PrX > EtX > MeX
  ক

  (X = Cl, Br, I) The correct statements are: I. The decreasing order of rate of SN1reaction is t-BuX > iso-PrX > EtX > MeX II. The decreasing order of ionization energy is MeX > EtX > iso-PrX > t-BuX III. The decreasing order of energy of activation is t-BuX > iso-PrX > EtX > MeX ] I & II are correct

  খ

  R = t-Bu, iso-Pr, Et, Me

  গ

  R = t-Bu, iso-Pr, Et, Me

  ঘ

  R = t-Bu, iso-Pr, Et, Me
• Which of the following reaction will go faster if the concentration of the nucleophile is raised?
  ক

  I and III

  খ

  II and IV

  গ

  I and II

  ঘ

  I, II and IV
• Which of the following compound shows the correct decreasing order of solvolysis with aqueous ethanol? The correct choice is:
  ক

  III > II > I > IV

  খ

  III > II > IV > I

  গ

  II > III > IV > I

  ঘ

  III > I > IV > II