BOD value of water is 20 ppm. Then what can | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) The $BOD$ (Biochemical Oxygen Demand) is a measure of the amount of dissolved oxygen required by bacteria to decompose organic matter present in a

Vedclass · Accepted Answer

Highly polluted water

Vedclass · Answer

(D) The $BOD$ (Biochemical Oxygen Demand) is a measure of the amount of dissolved oxygen required by bacteria to decompose organic matter present in a water sample.- Clean water has a $BOD$ value of less than $5 \ ppm$.- Moderately polluted water has a $BOD$ value between $5 \ ppm$ and $10 \ ppm$.- Highly polluted water has a $BOD$ value of $17 \ ppm$ or more.Since the given $BOD$ value is $20 \ ppm$,which is greater than $17 \ ppm$,the water is considered highly polluted.

List-$I$	List-$II$
$A$. Bleaching of paper	$I$. $CF_2Cl_2$
$B$. Eye irritant	$II$. $H_2O_2$
$C$. Freons	$III$. $Na_2AsO_3$
$D$. Herbicide	$IV$. $PAN$
	$V$. $CO_2$

$BOD$ value of water is $20 \ ppm$. Then what can you conclude regarding water?

Similar Questions

Summarize the international standards for the concentration of various metals and ions in drinking water.

$A$ biosphere is composed of

Match the items in List-$I$ with the items in List-$II$ and select the correct answer from the given options:
List-$I$ List-$II$
$A$. Bleaching of paper $I$. $CF_2Cl_2$
$B$. Eye irritant $II$. $H_2O_2$
$C$. Freons $III$. $Na_2AsO_3$
$D$. Herbicide $IV$. $PAN$
$V$. $CO_2$

Mention the types of atmospheric pollution.

In the stratosphere,most of the ozone formation is assisted by:

Vedclass Test Series

Exam Paper Generator

Online Exam Module