Question

Which of the metals in the list below will react with 1MH₂​SO₄​ to produce hydrogen gas?
Na⁺+1e⁻⟶Na E∘=−2.714
Cd²⁺+2e⁻⟶Cd E∘=−0.403
Pb²⁺+2e⁻⟶Pb E∘=−0.126
Cu²⁺+2e⁻⟶Cu​ E∘=+0.337​
a. Na,Cd,Pb, and Cu
b. Na,Cd, and Pb only
c. Na and Cd only
d. Cu only