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25 مناظر · 01/10/24
BT-101 ||chemistry ||@rgpv || chp-1 water analysis||
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01/10/24
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/ Chemistry
In this video we read about :----
introduction
sources of water
impurities in water
sources of impurities in water
and specification of water for different uses
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25 مناظر · 01/10/24
