MCQ
Find the odd one out.
- ✓$CO ^{3+}$
- B$Cr ^{3+}$
- C$V ^{3+}$
- D$Ti ^{3+}$
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The button cell used in watches functions as follows.
$Zn _{( s )}+ Ag _2 O _{( s )}+ H _2 O _{( l )} \rightleftharpoons 2 Ag _{( s )}+ Zn _{( aq )}^{2+}+2 OH _{( aq )}^{-}$
the half cell potentials are
$Ag _2 O _{( s )}+ H _2 O _{( l )}+2 e ^{-} \longrightarrow 2 Ag _{( s )}+2 OH _{( aq )}^{-}$
$E ^0=0.34 V$ The cell potential will be