1-To check the completion of electrolysis
(a) Sodium choride and K4[Fe (CN)6] solution is used
(b) Sodium acetate and K4[Fe (CN)6] solution is used.
(c) Sodium acetate and Cu2[Fe(CN)6] solution is used.
(d) Sodium choride and Cu2[Fe(CN)6] solution is used.
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Answer:
Option a
Explanation:
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