Lessons

6 lessons • 51m

Overview lesson (in Hindi)

2m 00s

PH: Potential Hydrogen Ion Concentration (in Hindi)

11m 44s

Acidity and Alkalinity (in Hindi)

10m 47s

Hardness (in Hindi)

8m 21s

Remaining of Chemical Characteristics (in Hindi)

8m 37s

Biological water quality (in Hindi)

9m 51s

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