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BITSAT 2013
Exam
BITSAT
Year
2013
Subject
Chemistry
Chapter
Haloalkanes and Haloarenes

BITSAT 2013 · Chemistry · Haloalkanes and Haloarenes

In a S_ N 2 substitution reaction of the type R-Br+Cl^ - DMF...

In a SN2\mathrm{S}_{\mathrm{N}} 2 substitution reaction of the type R−Br+Cl−⟶DMFR−Cl+Br−\mathrm{R}-\mathrm{Br}+\mathrm{Cl}^{-} \stackrel{\mathrm{DMF}}{\longrightarrow} \mathrm{R}-\mathrm{Cl}+\mathrm{Br}^{-} which one of the following has the highest relative rate?In a S_ N 2 substitution reaction of the type R-Br+Cl^ - DMF R-Cl+Br^ - which one of the following has the highestIn a S_ N 2 substitution reaction of the type R-Br+Cl^ - DMF R-Cl+Br^ - which one of the following has the highestIn a S_ N 2 substitution reaction of the type R-Br+Cl^ - DMF R-Cl+Br^ - which one of the following has the highest

Options

  1. ACH3−CH2−CH2Br\mathrm{CH}_{3}-\mathrm{CH}_{2}-\mathrm{CH}_{2} \mathrm{Br}
  2. BA particle of mass m moves in the X Y plane with a velocity v along the straight line AB . If the angular momentum of
  3. CA particle of mass m moves in the X Y plane with a velocity v along the straight line AB . If the angular momentum of
  4. DCH3CH2Br\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{Br}

Correct answer

D. CH3CH2Br\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{Br}

Step-by-step solution

SN2\mathrm{S}_{\mathrm{N}} 2 mechanism is followed in case of primary and secondary halides i.e., \mathrm{S}_{\mathrm{N}^{2} reaction is favoured by small groups on the carbon atom attached to halogens so In a S_ N 2 substitution reaction of the type R-Br+Cl^ - DMF R-Cl+Br^ - which one of the following has the highest
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