MCQ
Common name for methanol is:
- AVolemitol
- BRubbing alcohol
- ✓Wood spirit
- DXylitol
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$Zn ^{2+}+2 e ^{-} \rightarrow Zn ; E ^{\circ}=-0.760 \,V$
$Ag _{2} O + H _{2} O +2 e ^{-} \rightarrow 2 Ag +2 OH ^{-} ; E ^{\circ}=0.344 \,V$
If $F$ is $96,500 C mol ^{-1}$ $\Delta G ^{\circ}$ of the cell will be $....$ (In $kJ mol ^{-1}$)
$Cu(s) + 2Ag^+(aq) \to Cu^{+2}(aq)+2Ag(s)$
$E_{cell}^o= + 0.46\, volt$.
If the concentration of $Cu^{+2}$ ions is doubled then $E_{cell}^o$ will be