Question

1)Nio+H2 gives Ni+H2O. 2) Fe+S gives FeS name the reactant that undergoes oxidation and reduction

Answer 1

Ni undergoes reduction.H2 undergoes oxidation.

S0 + 2 e- → S 2-

(reduction)

Fe0 - 2 e- → Fe2 s2-

(oxidation)