Electrochemistr...

The cell potential $$(E)$$ and the free energy change $$(\triangle G)$$ accompanying an electrochemical reaction are related by:

Which one of the following conditions will increase the voltage of the cell represented by the equation?
$$Cu(s) + 2Ag^{+}(aq.) \rightleftharpoons Cu^{2+}(aq.) + 2Ag(s)$$.

One faraday of electricity will liberate one gram mole of the metal from the solution of:

Among $$Na, Hg, S, Pt$$ and graphite, which can be used as electrodes in electrolytic cells having aqueous solutions?

On heating, sodium and sulphur can be melted. Molten sodium and molten sulphur are used ?

Selenium has the unusual property of being a good conductor in light but a poor conductor in the dark. It was, therefore, used in making.

Kunal took few iron turnings and mixed them well with Sulphur powder. He could separate the iron turnings with the help of a magnet. He heated the mixture for some time and tried to separate the iron turnings with the magnet but he could not. Why?

Is the reaction, $$2Al + 3Fe^{2+}\rightleftharpoons 2Al^{3+} + 2Fe$$ possible?

Which molecule electrolysis temperature is maximum?

The charge which is not possible, is: