Igcse Model Questions Vol1 2018 Chemistry Question 1
Practice objective / multiple choice question 1 from the 2018 Igcse Model Questions Vol1 Chemistry examination.
A river flows at \(200\,000\ \text{L min}^{-1}\) with a nitrate concentration of \(2\ \text{mg L}^{-1}\). An industrial plant discharges effluent at \(20\,000\ \text{L min}^{-1}\) containing nitrate at \(50\ \text{mg L}^{-1}\). The combined water enters a denitrification tank where \(80\%\) of the nitrate is removed. After the tank, \(100\,000\ \text{L min}^{-1}\) of clean water is added. Calculate the nitrate concentration (in \(\text{mg L}^{-1}\)) in the water downstream of the dilution point.
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About This Question
This is Igcse Model Questions Vol1 2018 Chemistry Question 1. It is one of the objective questions from the 2018 Igcse Model Questions Vol1 Chemistry examination.
Difficulty level: Hard .
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