Which of the following metals will not reduce | vedclass

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(C) The ability of a metal to reduce $H_2O$ to $H_2$ depends on its standard reduction potential. Metals with a negative reduction potential (more act

Vedclass · Accepted Answer

$Cu$

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(C) The ability of a metal to reduce $H_2O$ to $H_2$ depends on its standard reduction potential. Metals with a negative reduction potential (more active than hydrogen) can displace hydrogen from water. $Ca$,$Fe$,and $Li$ have reduction potentials lower than that of hydrogen,allowing them to react with water. $Cu$ has a positive standard reduction potential $(E^\circ_{Cu^{2+}/Cu} = +0.34 \ V)$,meaning it is a weaker reducing agent than hydrogen and cannot reduce $H_2O$ to $H_2$.

Which of the following metals will not reduce $H_2O$?

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