JEE Main 2020ChemistryHaloalkanes And HaloarenesHaloalkanesmediumMCQ
JEE Main 2020 — Haloalkanes And Haloarenes Question with Solution
From: JEE Main 2020 (Online) 2nd September Evening Slot
Question
Consider the reaction sequence given below:
Which of the following statements is true?
This question includes a diagram. The text above accompanies the figure.
Choose an option
▸Show full solutionCorrect option: A
Correct answer
AChanging the concentration of base will
have no effect on reaction (1)
Step-by-step explanation
For reaction 1,
rate = K [t-BuBr] ....(1)
for reaction 2,
rate = K[t-BuBr][OH–] ...(2)
Reaction 1 is independent of concentration of
OH– where as reaction 2 is dependent on
concentration of OH–
Hence changing the concentration of base will
have no effect on reaction 1.
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