Copper reduces NO ₃⁻ⁱnto NO and NO₂ depending upon the concentration of HNO₃ in solution. (Assuming fixed [Cu²⁺] and P N O = P N O₂), the HNO₃ concentration at which the thermodynamic tendency for reduction of NO ₃⁻ⁱnto NO and NO₂ by copper is same is 10ˣ M. The value of 2x is _ _ _ _. (Rounded off to the nearest integer) [Given, E_ C u²⁺ /Cu ^(o) = 0.34 V, E NO₃^ - /NO ^(o) = 0.96 V, E_ NO₃^ - /N O₂ ^(o) = 0.79 V and at 298 K, RT/F (2.303) = 0.059]

Redox Reactions and Electrochemistry: JEE Main 2021 Chemistry question

JEE Main 2021 · 25 Feb, Evening shift · Q6

JEE Main 202125 Feb, Evening shiftChemistryHardRedox Reactions and Electrochemistry138× since 2002

Copper reduces NO

_3^ -

into NO and NO₂ depending upon the concentration of HNO₃ in solution. (Assuming fixed [Cu²⁺] and P_NO = P_NO₂), the HNO₃ concentration at which the thermodynamic tendency for reduction of NO

_3^ -

into NO and NO₂ by copper is same is 10^x M. The value of 2x is _______. (Rounded off to the nearest integer) [Given,

E_{C{u^{2 + }}/Cu}^o = 0.34

E_{NO_3^ - /NO}^o = 0.96

E_{NO_3^ - /N{O_2}}^o = 0.79

V and at 298 K,

{{RT} \over F}

(2.303) = 0.059]

Your answerType your answer. Integers and decimals are accepted.

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