when we prepared hydrogen gas in nellcen,s cell, why chlorine goes to anode ? not the OH?

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when we prepared hydrogen gas in nellcen,s cell, why chlorine goes to anode ? not the OH?

2007-07-06 20:21:26 · 2 answers · asked by kustian 1 in Science & Mathematics ➔ Chemistry

2 answers

Both Cl and OH go to the anode. However chlorine gets discharge as whenever there are chloride/iodide/bromide ions present in the solution, they will be discharged instead of OH.

2007-07-06 21:45:51 · answer #1 · answered by alexis 2 · 0⤊ 0⤋

Both Cl- ions and OH- ions move towards the anode, but Cl- ions, if they are there in good concentration, are earier to oxidise that OH-ions, so chlorine is the product rather than oxygen and water.

2007-07-07 03:25:15 · answer #2 · answered by Gervald F 7 · 1⤊ 0⤋