Question

Which of the metals in the list below will react with 1M H₂SO₄ to produce hydrogen gas?
Na⁺ + 1e⁻ → Na E⁰ = - 2.714
​Cd²⁺ + 2e⁻ → Cd E⁰ = - 0.403
​Pb²⁺ + 2e⁻ → Pb E⁰ = - 0.126
​Cu²⁺ + 2e⁻ → Cu E⁰ = - 0.337
a. Na,Cd,Pb, and Cu
b. Na,Cd, and Pb only
c. Na and Cd only
d. Cu only