Home UP BOARD Question Papers NCERT Solutions Sample Papers CBSE Notes NCERT Books CBSE Syllabus

Predict the Products of Electrolysis in Each of the Following ( Exercise Chapter 3 Electrochemistry Chemistry Class

Question 18: Predict the products of electrolysis in each of the following: (i) An aqueous solution of AgNO3 with silver electrodes. (ii) An aqueous solution of AgNO3with platinum electrodes. (iii) A dilute solution of H2SO4with platinum electrodes. (iv) An aqueous solution of CuCl2 with platinum electrodes. Chapter 3: Electrochemistry Chemistry Class 12 solutions are developed for assisting understudies with working on their score and increase knowledge of the subjects. Predict the products of electrolysis in each of the following: (i) An aqueous solution of AgNO3 with silver electrodes. (ii) An aqueous solution of AgNO3with platinum electrodes. (iii) A dilute solution of H2SO4with platinum electrodes. (iv) An aqueous solution of CuCl2 with platinum electrodes. is solved by our expert teachers. You can get ncert solutions and notes for class 12 chapter 3 absolutely free. NCERT Solutions for class 12 Chemistry Chapter 3: Electrochemistry is very essencial for getting good marks in CBSE Board examinations

Question 18: Predict the products of electrolysis in each of the following:
(i) An aqueous solution of AgNO3 with silver electrodes.
(ii) An aqueous solution of AgNO3with platinum electrodes.
(iii) A dilute solution of H2SO4with platinum electrodes.
(iv) An aqueous solution of CuCl2 with platinum electrodes.

Answer:Remember
All ions are in aqueous state
(i)
Reaction in solution
AgNO3               ↔     Ag+    +        NO3–
H2O             ↔     H+       +        OH
Reaction at cathode
Ag+   +          e-→      Ag
Reaction at anode
Ag(s)  +        NO3– →      AgNO3(aq)   +       e-
Hence Ag will deposit at cathode and dissolve at anode
(ii)
Reaction in solution
AgNO3               ↔     Ag+    +        NO3–
H2O             ↔     H+       +        OH
Reaction at cathode
Ag+   +          e-→      Ag
Reaction at anode
Due to platinum electrode self of ionization of water will take place 
H2O   →     2H+    +        1/2O2(g)   +  2e-
Hence Ag will deposit at cathode and O2 gas will generate at anode
(iii)
Reaction in solution
H2SO4                          ↔     2H+  +        SO42–
H2O             ↔     H+       +        OH
Reaction at cathode
H+      +          e-→      ½ H2
Reaction at anode
Due to platinum electrode self of ionization of water will take place 
H2O   →     2H+    +        1/2O2(g)   +  2e-
Hence H2 gas will generate at cathode and O2 gas will generate at anode
(iv)
Reaction in solution
CuCl2(s)      ↔     Cu2+            +        2Cl   
H2O             ↔     H+       +        OH
Reaction at cathode
Cu2+    +        2e-→      Cu(S)
Reaction at anode
2Cl             →      Cl2     +  2e-
Hence Cu will deposit at cathode and Cl2 gas will generate at anode

Important Links

NCERT CBSE Notes Class 6 - 12 Download pdf

Ncert Solution for class 6 to 12 download in pdf

CBSE Model test papars Download in pdf

NCERT Books for Class 1- 12 Hindi & English Medium

Mathematics Biology Psychology
Chemistry English Economics
Sociology Hindi Business Studies
Geography Science Political Science
Statistics Physics Accountancy

CBSE Syllabus Class 9 to 12 Year 2021-22

Last year CBSE Question paper

Important Links

Follow Us On

Face book page ncerthelp twitter page youtube page linkdin page

Solved Last Year Question Paper

If You have any problem/query related to above page please send us your Query to ncerthelp@gmail.com with code Serial No384/83. Thanks

Please Share this webpage on facebook, whatsapp, linkdin and twitter.

Facebook Twitter whatsapp Linkdin

Copyright @ ncerthelp.com A free educational website for CBSE, ICSE and UP board.