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The metal that cannot be obtained by electrolysis of an aqueous solution of its salt is
a) Cr
b) Ag
c) Ca
d) Cu
JEE MAINS (2014)
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Explanation:
correct option is C...
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Answer
(c) Ca
★Explanation★
Among all the metals, only Ca is a
s- block metal , which is highly electropositive and cannot be obtained by electrolysis of an aqua solution of its salt.
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