Question

the reaction 1/2H2+AgCl to H+ + Cl-+Ag occurs in the galvanic cell
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Answer 1

In a galvanic cell oxidation occurs in the left hand electrode chamber and reduction in right hand chamber.

The cell are,

1/2 H2=H+ + e- A+ anode

AgCl+e- -Ag+C- A+ cathode

Net:1/2 H2+AgCl=H+ +Ag+Cl-