which pair of metals produces the highest voltage and why

The maximum voltage can be produced in the cell which have higher difference in the electrocemical potential , in this case it would be most reactive magnesium and less reactive platinum...magnesum spontaneously gives its two electron and Pt takes its two electron.... as result generates the highest voltage

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batolisis batolisis · Answer 2 · 2021-11-03T12:56:49+01:00

The pair of metals that produces the highest voltage ; ( B ) magnesium and platinum.

From the table given in the question the most reactive metal is magnesium while the least reactive metal is platinum. The difference in metal reactivity is directly proportional to the electrochemical potential difference between the metals.

The higher the electrochemical potential difference the higher the voltage produced because the most reactive metals easily gives up its electrons and the electrons are easily accepted by the least reactive metal.

Note : The movement of electrons = the generation of electricity ( i.e. voltage generation )

Hence we can conclude that the pair that will produce the highest voltage is ; magnesium and platinum.

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