JEE Main 25 June 2022 Shift 2 Solved Paper

Section: Chemistry
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Question : 72 of 90
 
Marks: +1, -0
Given below are two statements : One is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: Polluted water may have a value of BOD of the order of 17‌ppm.
Reason R : BOD is a measure of oxygen required to oxidise both the bio-degradable an nonbiodegradable organic material in water.
In the light of the above statements, choose the most appropriate answer from the options given below.
[25-Jun-2022-Shift-2]
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