Out of Al, Na, Cu and Ag; the following metals can be obtained by the electrolytic reduction of aqueous solution of their salts _____________.

Cu, Ag

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Al, Na,

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Al, Ag

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None of these

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Solution

The correct option is C Cu, Ag
Out of Al, Na, Cu and Ag; the metals that can be obtained by the electrolytic reduction of aqueous solution of their salts are Cu, Ag. For example, copper is obtained by the electrolysis of acidified solution of copper sulphate with impure copper as anode and pure copper as cathode.

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Similar questions

Choose the metals, from the following, that are obtained by electrolysis of their salts:

$A l, N a, C u, A g, M g, C a$

P b, A u, M g, S n, F e, A l, A g, H g, N a, Z n, C u, C a

A g N O_{3}

C u S O_{4}

A l F_{3}

M_{A g}, M_{C u}, M_{A l}

C u (N O_{3})_{2}, A g N O_{3}, H g_{2} (N O_{3})_{2}

M g (N O_{3})_{2}

A g / A g^{+} = + 0.80, 2 H g / H g_{2}^{2 +} = + 0.79, C u / C u^{2 +} = + 0.34, M g / M g^{2 +} = - 2.37

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