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रासायनिक ऑक्सीजन माँग Chemical Oxygen Demand Quick & Easy to understand video lecture in Hindi

Posted by Dr.V.R.Manoj on May 21, 2018 at 2:39am

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environmental, science, dissolved, demand, chemical

Chemical Oxygen Demand : जल में कार्बनिक व अकार्बनिका यौगिकों के ऑक्सीकरण के लिये आवश्यक ऑक्सीजन की मात्रा। अनुप्रयोगों - रासायनिक ऑक्सीजन माँग : प्रदूषण के ...

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Paryavaran TV

रासायनिक ऑक्सीजन माँग Chemical Oxygen Demand Quick & Easy to understand video lecture in Hindi

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