Cell Potential (Electrochemistry) MCQs for CSIR NET GATE - ChemContent

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Chapter: Electrochemistry
Topic: Cell Potential
Content: MCQ Questions & Solutions
Source: CSIR NET, GATE etc. Exams

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Quiz                            PDF

Q1. Which electrode will be a better oxidizing agent?

    a)    E°(Ag⁺/Ag) = 0.80 V
    b)    E°(Cu²⁺/Cu) = 0.34 V

Q2. Which electrode will be a better reducing agent?

    a)    E°(Zn/Zn²⁺) = 0.76 V
    b)    E°(Fe²⁺/Fe) = -0.44 V

Q3. If E°_cell for

and

are x₁ and x₂ respectively, find E°_cell for

    (a) x₁ + x₂
(b) x₁ - x₂
(c) (2x₁+x₂)/3
(d) (x₁+2x₂)/3

Q4. If E°_cell for Fe³⁺/Fe = x₁ and for Fe²⁺/Fe = x₂ find E°_cell for Fe³⁺/Fe²⁺

    (a) 3x₁-2x₂  
(b) 3x₂-2x₁
(c) x₁+x₂
(d) x₁+3x₂

Q5. The standard electrode potentials (E°) of Fe³⁺/Fe²⁺ and Fe²⁺/Fe electrodes are +0.77 V and -0.44 V respectively at 300 K. The E° of Fe³⁺/Fe electrode at the same temperature is  

[NET Dec 2011]

    (a) 1.21 V   
(b) 0.33 V
(c) -0.11 V
(d) -0.04 V

Answer Key

Q1.a Q2.a Q3.c Q4.a Q5.d

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