what is the role of hydrogen in reactivity series
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Despite being a non-metal, hydrogen is often included in the reactivity series since it helps compare the reactivities of the metals. The metals placed above hydrogen in the series can displace it from acids such as HCl and H2SO4 (since they are more reactive).
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Hydrogen (H) is placed below Lead (Pb) and above Copper (Cu) in the reactivity series. This means in displacement reactions, elements above Hydrogen in the series including lead can displace Hydrogen in its compounds. This also means Hydrogen can displace elements below it in the reactivity series which include Copper (Cu), Mercury (Hg), Silver (Ag), Gold (Au), and Platinum (Pt).
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