Extraction of Metals - Result Question 48
48. Of the following, the metals that cannot be obtained by electrolysis of the aqueous solution of their salts are
(a) $Ag$
(b) $Mg$
(c) $Cu$
(d) $Al$
(e) $Cr$
$(1990,1 M)$
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Answer:
Correct Answer: 48. (b, d)
Solution:
- Magnesium and aluminium are both highly electropositive, more electropositive than water cannot be obtained by electrolysis of aqueous solution of their salts.
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