How long will it take to produce $$5.4 \mathrm{~g}$$ of $$\mathrm{Ag}$$ from molten $$\mathrm{AgCl}$$ by passing $$5 \mathrm{~amp}$$ current?

(Molar mass Ag = $$108 \mathrm{~g} \mathrm{~mol}^{-1}$$ )

Which of the following is NOT an example of secondary voltaic cell?

What is the number of unpaired electrons in $$\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}$$ complex?

Which among the following methods is used to prepare Grignard reagent?