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Previous year question hub

Electrochemistry - Life Sciences Previous Year Questions

Practice Electrochemistry - Life Sciences previous year questions organised from real papers, with year-wise coverage and clear topic navigation.

15Papers
15Years
17Questions
1Topics

Electrochemistry question pattern

Every graph below is calculated only from this selection.

Questions by year

Year-wise coverage for Electrochemistry. Each bar uses a separate theme-derived color.

Difficulty distribution

How the classified questions are distributed by difficulty.

Medium 10 58.8%
Easy 7 41.2%

Question type distribution

MCQ, numerical, multiple-select and other formats found in these papers.

MCQ 11 64.7%
Numerical Answer Type (NAT) 6 35.3%

Subject weightage

Top subjects by unique question coverage.

Life Sciences
17 Qs

Most asked topics

Top topics across the included previous year papers.

Electrochemistry
17 Qs

Subtopic coverage

Top subtopics inside this exact selection.

Conductance and Electrochemical Cells
17 Qs

Paper coverage

Question coverage for the most populated papers. Every active PYP paper remains listed below.

Life Sciences (XL) 2025
1 Qs
Life Sciences (XL) 2023
1 Qs
Life Sciences (XL) 2022
1 Qs
Life Sciences (XL) 2021
1 Qs
Life Sciences (XL) 2020
1 Qs
Life Sciences (XL) 2019
1 Qs
Life Sciences (XL) 2018
1 Qs
Life Sciences (XL) 2017
1 Qs
Life Sciences (XL) 2016
1 Qs
Life Sciences (XL) 2013
2 Qs
Life Sciences (XL) 2012
1 Qs
Life Sciences (XL) 2010
1 Qs
Life Sciences (XL) 2009
1 Qs
Life Sciences (XL) 2008
2 Qs
Life Sciences (XL) 2007
1 Qs

Browse by subtopics

Open a focused page built from the same verified paper data.

Conductance and Electrochemical Cells

Explore previous-paper coverage, trends and focused practice for Conductance and Electrochemical Cells.

17 questions15 papers15 years

Included previous year papers

Newest papers appear first. Sort by year, question coverage or name.

PaperYear / sessionQuestions in this viewOpen
Life Sciences (XL) 202520251View paper
Life Sciences (XL) 202320231View paper
Life Sciences (XL) 202220221View paper
Life Sciences (XL) 202120211View paper
Life Sciences (XL) 202020201View paper
Life Sciences (XL) 201920191View paper
Life Sciences (XL) 201820181View paper
Life Sciences (XL) 201720171View paper
Life Sciences (XL) 201620161View paper
Life Sciences (XL) 201320132View paper
Life Sciences (XL) 201220121View paper
Life Sciences (XL) 201020101View paper
Life Sciences (XL) 200920091View paper
Life Sciences (XL) 200820082View paper
Life Sciences (XL) 200720071View paper

Sample previous year questions

A varied preview from the papers represented in this selection, with every available option.

1
2007 · Life Sciences · Electrochemistry · Conductance and Electrochemical Cells
Life Sciences (XL) 2007
A fuel cell is based on the idea of the reaction H2(g) + ½ O2(g) → H2O(l) generating electricity. The standard free energy change (ΔG°) for this reaction at 298 K is –237.13 kJ/mol. The standard cell potential for the system at 298 K is (1 Faraday = 96500 coulombs)
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2
2008 · Life Sciences · Electrochemistry · Conductance and Electrochemical Cells
Life Sciences (XL) 2008
An electrochemical cell of the following representation was found to be a galvanic cell, where ‘A’ and ‘B’ represent different metals.
\[A(s) \mid A^{2+} (aq) \; 1 \; M \; \| \; B^{2+} (aq) \; 1M \mid B(s)\]
Which of the following statements with respect to the cell is correct?

Question diagram

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3
2009 · Life Sciences · Electrochemistry · Conductance and Electrochemical Cells
Life Sciences (XL) 2009
Given the following standard electrode potentials at 25 °C: \( \frac{1}{2} Fe^{2+} + e^- = \frac{1}{2} Fe(s) ; E^0 = -0.440 \, V \) \( Fe^{3+} + e^- = Fe^{2+} ; E^0 = +0.771 \, V \) The standard electrode potential at 25 °C for \( Fe^{3+} + 3e^- = Fe(s) \) is
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4
2010 · Life Sciences · Electrochemistry · Conductance and Electrochemical Cells
Life Sciences (XL) 2010

A battery delivers a steady current of 1.25 A for 90 minutes. The total charge 'Q' (in Coulomb units) is

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5
2012 · Life Sciences · Electrochemistry · Conductance and Electrochemical Cells
Life Sciences (XL) 2012
The value of standard half cell potential of Cu2+, Cu couple (E°Cu2+, Cu) is 0.34 V. A wire of pure copper is immersed into a solution of copper nitrate. If the measured cell potential against standard hydrogen electrode at 298 K is 0.24 V, the molar concentration of copper nitrate is {Assume activity of Cu2+ = [Cu2+]}.
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6
2013 · Life Sciences · Electrochemistry · Conductance and Electrochemical Cells
Life Sciences (XL) 2013
The molar conductance at infinite dilution (in S m2 mol-1) of acetic acid is
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