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

Show Answer

Answer:

Correct Answer: D

Solution:

[d] Na reacts vigorously with water (exothermic process)