When an aqueous solution of sodium fluoride is electrolyzed,the gas liberated at anode is ?
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1 Answers
1Oxygen.Hydroxyl ion is discharged at the cathode in preference to fluoride ion(as it lies lower in electrochemical series) forming water(which goes into the electrolyte) and oxygen gas. But i think if the solution is a concentrated one,then fluoride ions are discharged at the anode and fluorine gas is liberated.