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JEE Main 201815 AprilEvening ShiftOnline

Exam: JEE Main
Year: 2018
Date: 15 April
Shift: Evening Shift
Mode: Online
Subject: Chemistry
Chapter: Environmental Chemistry

JEE Main 2018 · 15 April · Evening Shift · Online · Chemistry · Environmental Chemistry

Biochemical oxygen demand(BOD) value can be a measure of water...

Biochemical oxygen demand(BOD) value can be a measure of water pollution caused by the organic matter. Which of the following statements is correct?

Options

APolluted water has BOD value higher than $10 \mathrm{ppm}$
BAerobic bacteria decreases the BOD value
CAnaerobic bacteria increases the BOD value
DClean water has BOD value higher than 10 ppm

Correct answer

A. Polluted water has BOD value higher than $10 \mathrm{ppm}$

Step-by-step solution

Clean water has BOD value less than

5 \mathrm{ppm}

. Polluted water has BOD value higher than 10 ppm.

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