MCQ
Which alloy contains $Cu, Sn$ and $Zn$
- ✓Gun metal
- BSolder
- CBell metal
- DGerman silver
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$(1)$ $PtCl_4·5NH_3$ $(2)$ $PtCl_4·4NH_3$
$(3)$ $PtCl4·3NH_3$ $(4)$ $PtCl4·2NH_3$
$Cu(s) + 2Ag^+(aq) \to Cu^{+2}(aq)+2Ag(s)$
$E_{cell}^o= + 0.46\, volt$.
If the concentration of $Cu^{+2}$ ions is doubled then $E_{cell}^o$ will be
