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Chemical Kinetics and Nuclear Chemistry question

2020 · 9 Jan · Shift 1 · Q7
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Chemical Kinetics and Nuclear Chemistry question

2020 · 9 Jan · Shift 1 · Q7

JEE MainChemistryChemical Kinetics and Nuclear ChemistryMCQ+4 / −1
For the following reactions A→700KProductolimitsA⟶catalyst500KProductolimitsA\xrightarrow{700K} {\mathop{\rm Product} olimits} A\mathrel{\mathop{\kern0pt\longrightarrow} \limits_{catalyst}^{500K}} {\mathop{\rm Product} olimits}A700K​ProductolimitsAcatalyst⟶500K​Productolimits it was found that Ea is decreased by 30 kJ/mol in the presence of catalyst. If the rate remains unchanged, the activation energy for catalysed reaction is (Assume pre exponential factor is same):
  1. A
    198 kJ/mol
  2. B
    135 kJ/mol
  3. C
    105 kJ/mol
  4. D
    75 kJ/mol
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