Question

The metal used in galvanizing of iron is.

• A. $Pb$
• B. $Zn$
• C. $Al$
• D. $Sn$

Answer 1

Answer: (B)

$Zn$

Answer 2

$Zn^{2 +}/Zn.E^{o} = - 0.76V$

$Al^{3 +}/AlE^{o} = - 1.662$

$Sn^{2 +}/SnE^{o} = - 0.136$

$Pb^{2 +}/PbE^{o} = - 0.126$

In galvanizing action $Zn$ is coated over iron.