Question

why does copper not liberate on reaching with dilute h2 so4​

Answer 1

Answer:

it gets protection layer of sodium

Answer 2

Answer:

copper does not liberate on reaching with dilute h2 so4​ because copper is below hydrogen in electro-chemical series where as other metals are above hydrogen hence they can reduce hydrogen ion present in acid to hydrogen gas .

hence ,

$cu + h_{2}so_{4}--> no reaction$

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