Two monovalent metals A and B are treated with dilute sulphuric acid. A liberates hydrogen and metal B does not. Predict the half-cell reactions and cell representation when these metals are coupled with H-electrode. Justify your answer with respect to standard electrode potential

Two monovalent metals A and B are treated with dilute sulphuric acid.

1.	Two monovalent metals A and B are treated with dilute sulphuric acid. A liberates hydrogen and metal B does not. Predict the half-cell reactions and cell representation when these metals are coupled with H-electrode. Justify your answer with respect to standard electrode potential
Answer» Solution :(i) COMPARISON of electropositivity of A and B with HYDROGEN. (ii) Identification of ANODE and cathode of the electrochemical cells. (III) Half-reactions that take place at the electrodes of the respective cells.