Electrochemistry Important Question for CBSE Class 12 Board Chemistry Exam 2025
Electrochemistry Important Question for CBSE Class 12 Board Chemistry Exam 2025 are mentioned here.
Electrochemistry Important Question for CBSE Class 12 Board Chemistry Exam 2025: CBSE Class 12 Board Exams 2025 is just a month away, and students must be preparing strategies to score high. To assist candidates in their preparation, here is the Electrochemistry Important Question for CBSE Class 12 Board Chemistry Exam 2025. Chapter 2 of Class 12 Chemistry - Electrochemistry, is pivotal in the CBSE Class 12 Chemistry syllabus. It explores the interconversion of chemical and electrical energy. This chapter delves into redox reactions, electrochemical cells, electrolysis, batteries, and corrosion. Students can get a strong understanding of these concepts by learning about the Important Questions of Chemistry Chapter 2 - Electrochemistry for CBSE Class 12 Board Chemistry Exam 2025.
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Electrochemistry Important Question for CBSE Class 12 Board Chemistry Exam 2025
This chapter covers fundamental electrochemistry, including galvanic and electrolytic cells, the Nernst equation, Gibbs free energy, and equilibrium constants. It explores the conductivity of solutions, Kohlrausch's law, and electrolysis. Finally, it discusses various battery types and the electrochemical nature of corrosion. Candidates can go through the Important Question of Electrochemistry for CBSE Class 12 Board Chemistry Exam 2025.
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Question Number |
Questions |
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Ques 1 |
Represent the cell in which the following reaction takes place Example 2.1 Mg(s) + 2Ag+(0.0001M) Æ Mg2+(0.130M) + 2Ag(s) Calculate its E if Eo = 3.17 V. |
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Ques 2 |
Calculate the equilibrium constant of the reaction: Cu(s) +2Ag+(aq) Æ Cu2+(aq) + 2Ag(s) Eo (cell ) = 0.46 V |
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Ques 3 |
L0 for NaCl, HCl and NaAc are 126.4, 425.9 and 91.0 S cm2 mol–1 m respectively. Calculate L0 for HAc. |
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Ques 4 |
A solution of CuSO4 is electrolysed for 10 minutes with a current of 1.5 amperes. What is the mass of copper deposited at the cathode? |
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Ques 5 |
Given the standard electrode potentials, |
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Ques 6 |
The conductivity of 0.20 M solution of KCl at 298 K is 0.0248 S cm–1. Calculate its molar conductivity. |
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Ques 7 |
The conductivity of 0.00241 M acetic acid is 7.896 × 10–5 S cm–1. Calculate its molar conductivity. If 0m for acetic acid is 390.5 S cm2 mol–1, what is its dissociation constant? |
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Ques 8 |
How much electricity in terms of Faraday is required to produce (i)20.0 g of Ca from molten CaCl2? (ii) 40.0 g of Al from molten Al2O3? |
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Ques 9 |
Predict the products of electrolysis in each of the following: (i) An aqueous solution of AgNO3 with silver electrodes. (ii) An aqueous solution of AgNO3 with platinum electrodes. (iii) A dilute solution of H2SO4 with platinum electrodes. (iv) An aqueous solution of CuCl2 with platinum electrodes. |
By practising these Electrochemistry Important Questions for the CBSE Class 12 Board Chemistry Exam 2025, focusing on these key topics and employing effective study strategies, students can master Electrochemistry and significantly enhance their performance in the CBSE Class 12 Chemistry examination. Further, the primary objective of the provided CBSE Class 12 Chemistry 2025 Important Questions from Chapter 2 - Electrochemistry is to assist students in their exam preparation. It is crucial to remember that these questions are intended solely for study purposes.
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