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CGP EDU Academic Team
Published on: August 13, 2026
Use the table given below to answer questions (i) and (ii)
Reaction | E0/V |
Ag → Ag+ + e– | –0.80 |
Cr3+ + 3e– → 3Cr | –0.74 |
Zn2++ 2e– → Zn | –0.76 |
Ι2(s) + 2e– → 2 Ι– | 0.54 |
Co2+ + 2e– → Co | –0.28 |
Ni2+ + 2e–→ Ni | –0.26 |
(i) The best reducing agent among the following is
Correct Answers for Comprehension Sub-Questions
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Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
(i) Ag + , Zn 2+ , Cr 3+ are not reducing agents.
I – is a reducing agent.
(ii) Eº cell = Eº cathode (RP) – Eº anode(RP)
= EºCo +2 /Co – EºNi +2 /Ni
= –0.28 – (–0.26) = –0.02 V
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