1.

The standard oxidation potentials of the electrodes Ag|Ag^+,Sn|Sn^(2+),Ca|Ca^(2+),Pb|Pb^(2+) are -0.8,0.136,2.866 and 0.126V respectively. The most powerful oxidising agent among these metal ions is :

Answer»

`PB^(2+)`
`Ca^(2+)`
`Sn^(2+)`
`AG^+`

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