The presence of free ammonia in sewage, is detected by« Back to Previous Page

A. boiling B. adding pottassium permanganate C. adding sulphuric acid D. phenol-di-sulphuric acid.
Posted by Civil Engineer
Asked on August 17, 2016 11:55 am
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A. boiling

Posted by Civil Engineer
Answered on August 17, 2016 11:56 am