Question

Elements are given in the order of decreasing reactivity according to the electrochemical series.
$Ca,Na,Mg,Zn,Fe,H,Cu,Hg,Ag,Au$
Among the following which one is the best reducing agent and the easiest to oxidize?

• A. $Au$
• B. $Cu$
• C. $Fe$
• D. $H$
• E. $Ca$

Answer 1

Answer: (E)

$Ca$

$Ca$ is the best reducing agent and the easiest to oxidize as, it has maximum reactivity according to the electrochemical series.