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Two metals A and B have reduction potent...

Two metals A and B have reduction potential values of -0.25 v and +0.80 V respectiely. Which of these will liberate hydrogen gas from dilute `H_(2)SO_(4)`?

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Metal A with reduction potential `(E^(@)=-0.25" V")` will be in a position to liberate hydrogen from dilute `H_(2)SO_(4)`.
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