Question

हाइड्रोजन इज नॉट प्ले स्टोर एट द टॉप ऑफ द एक्टिविटी सीरीज​

Answer 1

Explanation:

In chemistry, a reactivity series (or activity series) is an empirical, calculated, and structurally analytical progression[1] of a series of metals, arranged by their "reactivity" from highest to lowest.[2][3][4] It is used to summarize information about the reactions of metals with acids and water, single displacement reactions and the extraction of metals from their ores.