Purification And Characterisation Of Organic Compounds Question 185
Question: In electro-refining of metal the impure metal is made the anode and a strip of pure metal, the cathode, during the electrolysis of an aqueous solution of a complex metal salt. This method cannot be used for refining of
Options:
A) silver
B) copper
C) aluminium
D) sodium
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Answer:
Correct Answer: D
Solution:
[d] Na reacts vigorously with water (exothermic process)