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A reaction takes place in three steps: t...

A reaction takes place in three steps: the rate constant are `k_(1), k_(2), and k_(3)`. The overall rate constant `k=(k_(1)k_(3))/(k_(2))`. If `E_(1), E_(2)`, and `E_(3)` (energy of activation) are `60, 30` and `10kJ`, respectively, the overall energy of activation is

A

40kJ

B

30kJ

C

400kJ

D

60kJ

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The correct Answer is:
A
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