ilmkidunya.com has brought to you Lecture of Sibghat Ullah on "9th Class Chemistry Chapter 7 Electrochemistry. Topic Introduction About Electrochemistry". For more videos of Sibghat Ullah visit https://www.ilmkidunya.com/study , https://www.instutor.com This lecture is specially recorded for students of 9th class, 9th class from all Punjab Boards and is based on the current curriculum of study for Chemistry book. All these lectures are conducted in Urdu/English medium to facilitate Pakistani students.