Where can i download NCERT Class 12 Chemistry Solutions Electrochemistry?

Q: How to download NCERT Class 12 Chemistry Solutions Electrochemistry?

You can download PDF of NCERT Class 12 Chemistry Solutions Electrochemistry from StudiesToday.com

Chemistry

NCERT Class 12 Chemistry Solutions Electrochemistry - NCERT Solutions prepared for CBSE students by the best teachers in Delhi.

Class XII Chemistry

Chapter 3 – Electrochemistry

Question 1:

Arrange the following metals in the order in which they displace each other from the solution of their salts.

Al, Cu, Fe, Mg and Zn

Answer

The following is the order in which the given metals displace each other from the solution of their salts.

Mg, Al, Zn, Fe, Cu

Question 2:

Given the standard electrode potentials,

K⁺/K = −2.93V, Ag⁺/Ag = 0.80V,

Hg²⁺/Hg = 0.79V

Mg²⁺/Mg = −2.37 V, Cr³⁺/Cr = − 0.74V

Arrange these metals in their increasing order of reducing power.

Answer

The lower the reduction potential, the higher is the reducing power. The given standard electrode potentials increase in the order of K⁺/K < Mg²⁺/Mg < Cr³⁺/Cr < Hg²⁺/Hg <Ag⁺/Ag.

Hence, the reducing power of the given metals increases in the following order: Ag < Hg < Cr < Mg < K

You can click on links for other Chemistry chapters also to download more free solutions and study material like some basic concepts of chemistry pdf.

Question 3:

Depict the galvanic cell in which the reaction Zn(s) + 2Ag+(aq) → Zn²⁺(aq) + 2Ag(s) takes place. Further show:

(i) Which of the electrode is negatively charged?

(ii) The carriers of the current in the cell.

(iii) Individual reaction at each electrode.

Question 3.4:

Calculate the standard cell potentials of galvanic cells in which the following reactions take place:

(i) 2Cr(s) + 3Cd²⁺(aq) ¨ 2Cr3+(aq) + 3Cd

(ii) Fe2+(aq) + Ag+(aq) ¨ Fe3+(aq) + Ag(s)

Calculate the =rGƒÆ and equilibrium constant of the reactions.

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NCERT Solutions for class 12

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FAQ

Is NCERT enough of class 12 boards?

It is acceptable having decent information on NCERT books who are wishing to make sure about 75 or up to 85% in 12th BOARD Exams. Here good knowledge means done all chapters-examples and revised many times.

But to score above 95% NCERT is not enough. You need to accomplish extra difficult work by investing some additional amounts of energy By Practicing CBSE Sample Papers and CBSE Worksheets.

You must do 10 pervious year BOARD paper and solve a many as the question you can. It's advisable to practice the previous 10 years Board exam papers. So, that one can get a brief understanding of the exam pattern.

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