Which of the following substances is capable of reducing bromine, Br2?

Question

Cl- H2 Ni or Au

I think its H2

Answer 1

I think you are right; however, I also think Ni will do it.
Br2 + 2e ==> 2Br^-
H2 ==> 2H^+ + 2e
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Br2 + 2e ==> 2Br^-
Ni ==> Ni^2+ + 2e
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