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JEE Main 20202 SeptemberEvening Shift
Exam
JEE Main
Year
2020
Date
2 September
Shift
Evening Shift
Subject
Chemistry
Chapter
Haloalkanes and Haloarenes

JEE Main 2020 · 2 September · Evening Shift · Chemistry · Haloalkanes and Haloarenes

Consider the reaction sequence given below : Which of the following...

Consider the reaction sequence given below :

Consider the reaction sequence given below : Which of the following statements is true:

Which of the following statements is true:

Options

  1. AChanging the base from OH⊖{OH}^{⊖} to OR⊖OR ⊖ will have no effect on reaction (2)( 2 )
  2. BChanging the concentration of base will have no effect on reaction (1)( 1 )
  3. CDoubling the concentration of base will double the rate of both the reactions
  4. DChanging the concentration of base will have no effect on reaction (2)( 2 )

Correct answer

B. Changing the concentration of base will have no effect on reaction (1)( 1 )

Step-by-step solution

First reaction is SN1{SN}^{1} in which rate does not depend on conc. of nucleophile.

Second reaction is E2E2 reaction in which rate depends on conc. of base.

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