Question

16. In electrochemical series metals above hydrogen,
a. replace b.combine with c.complex with
d.none​

Answer 1

•The metals which are above hydrogen in electrochemical series like Cu, Hg, Au, Pt, etc., do not evolve hydrogen from dilute acids. Displacement of hydrogen from water: Iron and the metals below iron are capable of liberating hydrogen from water. The tendency increases from top to bottom in electrochemical series