Question

some metals are arranged in the decreasing order of their reactivity.
Mg>Zn>Pb>Cu>Ag
a) which will be the anode of Mg - Cu galvanic cell?
b) Write the equation of redox reaction taking place in the above cell​

Answer 1

Answer:

The electrochemical series is a list of metals and other substances arranged in rank order of how easily their atoms may lose electrons. The further apart the metals are in the electrochemical series, the higher the voltage produced across the cell.

In electrochemical series the metal in higher position can displace the metal in lower position from its salt solution.

But here, Copper is less reactive than Aluminium and is placed lower in electrochemical series with respect to Aluminium and hence can't displace Al from its salt solution.

Hence,no reaction occurs I hope you understand it.