MCQ
Cresols are
- ✓Hydroxy toluenes
- BDihydric phenols
- CTrihydric phenols
- DTrihydric alcohols

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$Ag\left( s \right)/A{g^ \oplus }||C{u^{2 + }}/Cu\left( s \right)$
$A{g^ \oplus } + {e^ - } \to Ag\,;\,{E^o} = x$
$C{u^{2 + }} + 2{e^ - } \to Cu\,;\,{E^o} = y$
$E^o_{cell}$ is

The unknown compounds $A$ and $B$ in the above reaction are :