MCQ
In galvanic cell, the salt bridge is used to
- ✓Complete the circuit
- BReduce the electric resistance in the cell
- CSeparate cathode from anode
- DCarry salts for the chemical reaction
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$CH_3-COOH$ $\mathop {\xrightarrow{{(i)\,B{r_2}/P}}}\limits_{(ii)\,NaCN\,(iii)\,{H_2}O/{H^ \oplus }/\Delta } \,[X]$
$[X]$ will be :
${B^{3 + }}_{(aq.)} + 3{e^ - } \to B(s)$ ; $E = 0.6\ Volt$
Using above information find the ion which will be deposited first at cathode if solution containing $A_{(aq.)}^{2 + }$ & $B_{(aq.)}^{ 3+ }$ is electrolysed