Redox reaction play a pivotal role in chemistry and biology. The values of standard redox…
Chemistry · JEE Advanced · NTA Exams — Electrochemistry
Redox reaction play a pivotal role in chemistry and biology. The values of standard redox potential (Eº) of two half-cell reactions decide which way the reaction is expected to proceed. A simple example is a Daniell cell in which zinc goes into solution and copper gets deposited. Given below are a set of half-cell reactions (acidic medium) along with their Eº (V with respect to normal hydrogen electrode) values. (2007)
I2 + 2e–→ 2Ι– Eº = 0.54
Cl2 + 2e– → 2Cl– Eº = 1.36
Mn3+ + e– → Mn2+ Eº = 1.50
Fe3+ + e– → Fe2+ Eº = 0.77
O2 + 4H+ + 4e– → 2H2O Eº = 1.23
Among the following, identify the correct statement
- chloride ion is oxidised by O2
- Fe2+ is oxidised by iodine
- iodide ion is oxidised by chlorine
- Mn2+ is oxidised by chlorine
Answer
(C) iodide ion is oxidised by chlorine
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- By passing 0.1 Faraday of electricity through fused sodium chloride, the amount of chlorine liberated is…
- In the cell, Zn | Zn 2+ || Cu 2+ | Cu, the negative terminal is
- Consider the following cell reaction 2Fe ( s ) + O 2( g ) + 4H + ( aq ) → 2Fe 2 + ( aq ) + 2H 2 O ( l ) ; E°…
- Electrode potential data are given below : array ll Fe _ ( aq ) ^ +3 + e ^ - Fe _ ( aq ) ^ +2 ; & E ^ =+0.77…
- When 9.65 coulombs of electricity is passed through a solution of silver nitrate (atomic mass of Ag = 108 g…
- Standard reduction electrode potentials of three metals A, B and C are respectively – 0.5, – 3.0 V and – 1.2…
- For the reaction Zn(s) + Cu 2+ (aq) ⇌ Cu(s) + Zn 2+ (aq) Reaction Quotient = [ Zn ^ 2+ ] [ Cu ^ 2+ ] …
- Standard electrode potential data are useful for understanding the suitability of an oxidant in a redox…
More Electrochemistry questions · Browse all practice questions