1.

The standard reduction potential at 298 K for the following half cell reactions are given below Zn^(2+)(aq)+2e^(-) to Zn(s) "" E^(@)=-0.762V Cr^(3+)(aq)+3e^(-)toCr(s) ""E^(@)=-0.740V2H^(+)(aq)+2e^(-) toH_(2)(g) "" E^(@)=0.0VFe^(3+)(aq)+e^(-) toFe^(2+)(aq) "" E^(@)=0.77V.Which is the strongest reducing agent ?

Answer»

Zn (s)
Cr(s)
`H_(2)(g)`
`FE^(2+)(aq)`.

Solution :Zn has LOWEST reduction potential and it will be easily oxidised . THEREFORE, it acts as stron - gest reducing agent.


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