Select the incorrect option,when a lead storage battery is discharged $-$

An electrochemical cell is constructed using half-cells in the direction of spontaneous change: $Fe(OH)_{2}(s) + 2e^{-} \rightarrow Fe(s) + 2OH^{-}(aq)$ $(E^{0} = -0.88 \text{ V})$ and $AgBr(s) + e^{-} \rightarrow Ag(s) + Br^{-}(aq)$ $(E^{0} = +0.07 \text{ V})$. Which of the following options is correct?

In an electrochemical cell,

The reaction $Zn_{(s)} + 2AgCl_{(s)} \to Zn^{2+}_{(aq)} + 2Ag_{(s)} + 2Cl^{-}_{(aq)}$ will take place in which of the following electrochemical cells?

One of the commonly used electrodes is the calomel electrode. Under which of the following categories does the calomel electrode fall?

Four different solutions are placed in separate beakers,and a copper metal strip is added to each. Which solution will turn blue after some time?