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Chemical Kinetics and Nuclear Chemistry question

2007 · Shift 0 · Q26
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Chemical Kinetics and Nuclear Chemistry question

2007 · Shift 0 · Q26

JEE MainChemistryChemical Kinetics and Nuclear ChemistryMCQ+4 / −1
The energies of activation for forward and reverse reactions for A2A_2A2​ + B2B_2B2​ ⇋\leftrightharpoons⇋ 2ABABAB are 180 kJ mol−1 and 200 kJ mol−1 respectively. The presence of catalyst lowers the activation energy of both (forward and reverse) reactions by 100 kJ mol−1. The enthalpy change of the reaction ( A2A_2A2​ + B2B_2B2​ →\to→ 2ABABAB) in the presence of catalyst will be (in kJ mol−1)
  1. A
    300
  2. B
    120
  3. C
    200
  4. D
    20
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