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Copper does not react with dilute HCl because

Question
Copper does not react with dilute HCl because
Copper is very reactive
Copper is less reactive than hydrogen and cannot displace it
Copper forms a coloured gas instead
Copper is a non-metal
Answer
Copper is less reactive than hydrogen and cannot displace it
Detailed Explanation
Copper lies below hydrogen in the reactivity series, so it cannot displace hydrogen from dilute acids.
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