JEE Main 2020 — Haloalkanes And Haloarenes Question with Solution
From: JEE Main 2020 (Online) 7th January Evening Slot
Question
For the following reactions
Ks and Ke, are respectively, the rate constants for substitution and elimination and the correct options is
Ks and Ke, are respectively, the rate constants for substitution and elimination and the correct options is
This question includes a diagram. The text above accompanies the figure.
Choose an option
Show full solutionCorrect option: B
Correct answer
B and Ke(B) > Ke(A)
Step-by-step explanation
For 1o alkayl halide rate of substitute reaction is more than rate of elimination reaction.
When Z = A, then ks ke and
when Z = B, then ks ke
A B
As B is strong base than A so for B more elimination reaction happens.
Ke(B) Ke(A)
When Z = A, then ks ke and
when Z = B, then ks ke
A B
As B is strong base than A so for B more elimination reaction happens.
Ke(B) Ke(A)
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