Which one of the following statements is not | vedclass

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

Question

(D) In environmental chemistry,Chemical Oxygen Demand $(COD)$ is the total amount of oxygen (in $ppm$) required to chemically oxidize all organic and

Vedclass · Accepted Answer

$COD$ is the measure of bacteria in water

Vedclass · Answer

(D) In environmental chemistry,Chemical Oxygen Demand $(COD)$ is the total amount of oxygen (in $ppm$) required to chemically oxidize all organic and inorganic pollutants in a given water sample. It is not a measure of bacteria.Thus,option $(D)$ is incorrect.- $NO_2$ is known to be a lung irritant.- Municipal sewage typically has a $BOD$ (Biological Oxygen Demand) value ranging from $100-4000 \ ppm$.- The primary source of $CO$ (carbon monoxide) in the atmosphere is automobile exhaust fumes.

List-$I$	List-$II$
$A$. Sulphate	$I$. Pesticide
$B$. Fluoride	$II$. Bending of bones
$C$. Nicotine	$III$. Laxative effect
$D$. Sodium arsinite	$IV$. Herbicide

Which one of the following statements is not correct?

Similar Questions

Over $10 \ ppm$ fluoride causes

Which of the following is a gaseous pollutant?

Soil containing both $Al$ and $Fe$ is called

Match List-$I$ with List-$II$.

List-$I$ List-$II$

$A$. Sulphate $I$. Pesticide

$B$. Fluoride $II$. Bending of bones

$C$. Nicotine $III$. Laxative effect

$D$. Sodium arsinite $IV$. Herbicide

Choose the correct answer from the options given below.

Which of the following statements is true about the ozone layer?

Vedclass Test Series

Exam Paper Generator

Online Exam Module