Question

Equation for hydrogenation

Answer 1

1. The balanced chemical equation for the hydrogenation of ethylene is:

C2H4 + H2 → C2H6

This mechanism has been proposed: (H⋅ is a hydrogen atom with its one, unpaired electron)

Step (i) fast, equilibrium H2 ⇔ 2 H⋅

Step (ii) slow C2H4 + H⋅ → C2H5

Step (iii) fast C2H5 + H⋅ → C2H6

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Answer 2

See the attached file..

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