Question

On the basis of position in the electrochemical series, the metal which does not displace hydrogen from water and acid is.

• A. $Hg$
• B. $Al$
• C. $Pb$
• D. $Ba$

Answer 1

Answer: (A)

$Hg$

Answer 2

Hg because it lies below $H_{2}$ in electrochemical series and thus cannot reduce it.