Lesson 5 of 5 • 5 upvotes • 8:46mins
Disinfectant, disinfection of water, chlorination,process of chlorination all are covered nicely
5 lessons • 35m
Course overview (in Hindi)
2:01mins
Hardness of Water Part 1 (in Hindi)
7:53mins
Hardness of Water Part 2 (in Hindi)
6:40mins
Hardness of Water Part 3 (in Hindi)
10:22mins
Hardness of Water Part 4 (in Hindi)
8:46mins