12-chm-CH#2 – Online Chemistry

12th Chemistry

Chapter # 02 / Electrochemistry

Reference Books : National Book Foundation, KPK & Balochistan Text Book

Class 10 Chemistry notes according to latest FBISE syllabus following 2022-23 Curriculum. Contains detailed video lectures, solved exercises, review questions, MCQs, pdf notes and past board papers solution.

1. Introduction to electrochemistry

2. Oxidation-Reduction Concept, Oxidation number, Oxidizing and Reducing Agents, Disproportionation Reactions

3. Example # 2.1 & 2.2,
Concept Assessment Exercise # 2.1 & 2.5

4. Oxidation Number Method (Balance Equation directly)

5. Oxidation Number Method (One Reactant is doubled)

6. Ion-Electron Method (Balance Equation directly)

7. Ion-Electron Method (Acidic Medium)

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6. Electrolytic cells, Electrolysis

7. Factors affecting the products of Electrolysis

8. Working of Galvanic cell

9. Cell Potential

10. Standard Hydrogen Electrode (SHE)

11 Methods to measure the electrode potentials

12. Determination of cell Potential

13. Feasibility of a Chemical Reaction

14. Electrochemical Series

15. The Relative Reactivity of Species as oxidizing & Reducing agents

16. Relation between Faraday Constant, Avogadro Constant & Charge on the electron

17. Experimental determination of Avogadro Constant By Electrolytic Method

18. Exercise solution (Objectives)

FBISE-12th-2nd chapter-Electrochemistry-objectives

Total 10 MCQs

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1 / 10

1) What is the oxidation number of sulphur in H2SO4?

A) +6

B) +2

C) 0

D) -2

2 / 10

2) What is the relationship between the Faraday constant (F), avogadro’s number (NA) and the charge of an electron (e-) ?

A) F = NA / e-

B) F = NA x e-

C) F = e- 2 x NA

D) F = e- / NA

3 / 10

3) In the given reaction, what is the reducing agent?

A) Cu

B) SO4-2

C) Fe

D) CuSO4

4 / 10

4) In a redox reaction, the oxidizing agent:

A) Loses protons

B) gains electrons

C) gains protons

D) Loses electrons

5 / 10

5) Which of the following metals would not react with HCl to produce H2 gas?

A) Zn

B) Fe

C) Cu

D) Mg

6 / 10

6) Which of the following elements is reduced in the reaction?

A) Neither Na nor Cl

B) Both Na and Cl

C) Na

D) Cl

7 / 10

7) The standard electrode potential of the hydrogen electrode is defined as:

A) 0 V

B) 1 V

C) 0.5 V

D) -1 V

8 / 10

8) In the electrolysis of water, which substance is liberated at the cathode?

A) H2O

B) O2

C) H2

D) OH-

9 / 10

9) The Winkler method measures the concentration of which substance to determine BOD?

A) N2

B) H2

C) O2

D) CO2

10 / 10

10) Which of the following best describes the process of oxidation?

A) loss of electrons

B) gain of electrons

C) gain of protons

D) loss of protons

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