The standard reduction potential data at 25 °C is given below. E^ ( Fe^ 3+ , Fe^ 2+ ) = +0.77 V; E^ ( Fe^ 2+...

Question

The standard reduction potential data at 25 °C is given below. E^ ( Fe^ 3+ , Fe^ 2+ ) = +0.77 V; E^ ( Fe^ 2+ , Fe ) = -0.44 V E^ ( Cu^ 2+ , Cu ) = +0.34 V; E^ ( Cu^+, Cu ) = +0.52 V E^ [ O_2(g) + 4H^+ + 4e^- 2H_2O ] = +1.23 V; E^ [ O_2(g) + 2H_2O + 4e^- 4OH^- ] = +0.40 V E^ ( Cr^ 3+ , Cr ) = -0.74 V; E^ ( Cr^ 2+ , Cr ) = -0.91 V Match E^ of the redox pair in List I with the values given in List II and select the correct answer using the code given below the lists : List I P. E^ ( Fe^ 3+ , Fe ) Q. E^ ( 4H_2O 4H^+ + 4OH^- ) R. E^ ( Cu^ 2+ + Cu 2Cu^+ ) S. E^ ( Cr^ 3+ , Cr^ 2+ ) List II 1. −0.36 V 2. −0.4 V 3. −0.04 V 4. −0.83 V

Accepted Answer

(D)

JEE Advanced 2013 Chemistry question

Solution

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