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प्रश्न
The metal that cannot be obtained by electrolysis of the aqueous solution of its salts is ______.
पर्याय
Ag
Cr
Cu
Al
MCQ
रिकाम्या जागा भरा
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उत्तर
The metal that cannot be obtained by electrolysis of the aqueous solution of its salts is Al.
Explanation:
Aluminium cannot be obtained by electrolysis of its aqueous salt solution because its ion (Al3+) has a very high reduction potential. In aqueous solution, water gets reduced preferentially to hydrogen gas instead of Al3+ being reduced to aluminium metal.
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