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BITSAT 2021

Exam: BITSAT
Year: 2021
Subject: Chemistry
Chapter: Environmental Chemistry

BITSAT 2021 · 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 $B O D$ value higher than $10 \mathrm{ppm}$

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 \mathrm{ppm}

.

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