Electrochemistry Class 12 NCERT Solutions
Class 12 Chemistry students should refer to the following NCERT questions with answers for Electrochemistry in standard 12. These NCERT Solutions with answers for Grade 12 Chemistry will come in exams and help you to score good marks
Electrochemistry NCERT Solutions Class 12
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 =rGĮ and equilibrium constant of the reactions.
Students should free download the NCERT solutions and get better marks in exams. Studiestoday.com panel of teachers recommend students to practice questions in NCERT books and download NCERT solutions.
NCERT Class 12 Chemistry Solutions The Solid State |
NCERT Class 12 Chemistry Solutions Haloalkanes and Haloarenes |
NCERT Class 12 Chemistry Solutions Alcohols Phenols and Ethers |
NCERT Class 12 Chemistry Solutions Aldehydes Ketones and Carboxylic Acids |
NCERT Class 12 Chemistry Solutions Amines |
NCERT Class 12 Chemistry Solutions Biomolecules |
NCERT Class 12 Chemistry Solutions Polymers |
NCERT Class 12 Chemistry Solutions Chemistry in Everyday Life |
NCERT Class 12 Chemistry Solutions Solutions |
NCERT Class 12 Chemistry Solutions Electrochemistry |
NCERT Class 12 Chemistry Solutions Chemical Kinetics |
NCERT Class 12 Chemistry Solutions Surface Chemistry |
NCERT Class 12 Chemistry Solutions General Principles of Isolation of Elements |
NCERT Class 12 Chemistry Solutions The p Block Elements |
NCERT Class 12 Chemistry Solutions The d and f Block Elements |
NCERT Class 12 Chemistry Solutions Coordination Compounds |