List of top Chemistry Questions on Electrochemical Cells asked in MHT CET

Which of the following relations about \( E^\circ_{cell} \) is false?

If standard reduction potential ($E^\circ$) of ($Mg^{2+} | Mg(s)$), ($Ag^+ | Ag(s)$), ($Zn^{2+}(aq) | Zn(s)$) and ($Cu^{2+}(aq) | Cu(s)$) are $-2.37$ V, $+0.79$ V, $-0.76$ V and $+0.34$ V respectively. Which of the following reaction is spontaneous?

Which of the following changes takes place at positive electrode during recharging of lead accumulator?

Which of the following substances is NOT required in the construction of \(\text{H}_2 - \text{O}_2\) fuel cell?

Identify the gas produced due to reduction of $NH_{4}^{+}$ ions at cathode during working of dry cell.

Calculate $\Delta G^{\circ}$ for the cell: $Sn_{(s)}|Sn_{(1M)}^{2+}||Ag_{(1M)}^{+}|Ag_{(s)}$ at $25^{\circ}C (E_{cell}^{\circ}=0.90~V)$

Calculate $E^0_{cell}$ for $Cd(s) | Cd^{++}(1M) | | Ag^{+}(1M) | Ag(s)$. Given $E^0_{Cd} = -0.403 V$; $E^0_{Ag} = 0.799 V$.

In the cell represented as $\text{Ni}_{(s)} | \text{Ni}^{2+}_{(1\text{M})} || \text{Ag}^+_{(1\text{M})} | \text{Ag}_{(s)}$, the reducing agent is

Which from following is NOT true about voltaic cell?

Which of the following expressions is used to find the cell potential of $Cd_{(s)} | Cd_{(aq)}^{2+} \, || \, Cu_{(aq)}^{2+} | Cu_{(s)}$ cell at $25^\circ \text{C}$?