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CGP EDU Academic Team
Published on: August 14, 2026
For the reaction, R – X + OH – ⎯→ R OH + X – , the rate of overall reaction is given by, Rate = 5 × 10 –5 [R – X] [OH – ] + 2 × 10 –6 [R – X] When concentration of OH – is 10 –2 (M), then what percentage of R – X react by SN 2 mechanism?
Text Solution
Verified by ExpertsThe correct answer is:
D
The SN 2 reaction rate = 5 × 10 –7 [R – X]
The SN 1 reaction rate = 20 × 10 –7 [R – X]
∴ % of SN 2 reaction = 
× 100 = 20%
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