Question

name the metal which not react with wate, acid and base to form hydrogen​

Answer 1

Any metal in the electrochemical series which is below hydrogen atom can easily reduce hydrogen

For example,

Lithium is below hydrogen in electrochemical series of elements

So,

Li --> Li+ + e-

H+ + e- --> 1/2 H2

And any metal in the electrochemical series which is above hydrogen atom can easily oxidize hydrogen

For example,

H2 --> 2H+ + 2e-

Fe2+ + 2e- --> Fe

So,

In acid you have H+

To reduce it to H2 gas you need a metal below hydrogen in electrochemical series

In your question you asked for non reducible, so you need any metal above hydrogen in electrochemical series

So a possible answer is Iron or Fe

You can easily find several other examples

Answered by an IIT JEE ASPIRANT and all India mathematics OLYMPIAD TOPPER in class 10th