1.

The button cell used in watches function as follows Zn_a + Ag_(2)O(s) + H_2O_((l))

Answer»

0.84 V
1.34 V
1.10 V
0.42 V

Solution :Anodic OXIDATION: (Reverse the given reaction)
`(E_("ox")^@) = 0.76V ` cathodic reduction
`:. E_("CELL")^(@) = (E_("ox")^@) + (E_("RED")^(@)) = 0.76 + 0.34=1.1V `.


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