Home Chemistry Electrochemistry General Redox reactions play a pivotal role in chemi…
Chemistry Electrochemistry General Comprehension
Published on: August 14, 2026

Redox reactions play a pivotal role in chemistry and biology. The values of standard redox potential (E°) of two half-cell reactions decide which way the reaction is expected to proceed. A simple example is a Daniel 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 E° (V with respect to normal hydrogen electrode) values.

Using this data obtain the correct explanations to Questions 22-24.

I 2 + 2e – → 2I – E° = 0.54

Cl 2 + 2e – → 2Cl – E° = 1.36;

Mn 3+ + e – → Mn 2+ E° = 1.50

Fe 3+ + e – → Fe 2+ E° = 0.77

O 2 + 4H + + 4e – → 2H 2 O E° = 1.23

(i)Among the following, identify the correct statement :

Correct Answers for Comprehension Sub-Questions

Share this question

For Instagram sharing, use “Apps” on mobile or copy the link.

Text Solution

Verified by Experts
The correct answer is:
CHECK THE SOLUTION.

(i)

Sol. Iodide ion is oxidised by chlorine

(ii)

Sol. Mn 3+ oxidises H 2 O to O 2

(iii)

Sol. Fe 4 [Fe(CN) 6 ] 3

Prepare Smarter with CGP Edu

Get practice questions, solutions, and test series in one place.

Write a Review

Share your experience with this question and solution.

Commentary

Send your comment, doubt, correction, or feedback to admin.

Student Reviews

What students say about this solution

No reviews yet. Be the first to write a review.

Similar Questions

Explore conceptually related problems

CG
CGP Question Assistant Question Bank + AI Help
Hi! Type your question or upload one screenshot. First I will search related questions from CGP Edu Question Bank. If none match, type YES and I will solve it with AI.
Upload only one screenshot at a time. Flow: Question Bank first → If not matched, type YES for AI solution.