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Zinc liberates hydrogen gas when reacted with dilute hydrochloric acid,whereas copper does not. Explain why?

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asked Jan 9, 2018 in Chemistry by sforrest072 (157,439 points) ● 60 ● 409 ● 933
edited Jan 24, 2018 by Vikash Kumar

Zinc liberates hydrogen gas when reacted with dilute hydrochloric acid,whereas copper does not. Explain why?

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answered Jan 9, 2018 by faiz (82,347 points) ● 6 ● 6 ● 11
selected Jan 24, 2018 by Vikash Kumar
 
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Zinc is above hydrogen rvhereas copper is below hydrogen in the activity series of metals. That is why zinc displaces hydrogen from dilute hydrochloric acid, while copper does not.
              Zn + HCl ------->ZnCl2 + H2
              Cu + HCI ------> No reaction

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