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Assertion: If BOD level of water in a re...

Assertion: If `BOD` level of water in a reservoir is less than 5 ppm it is highly pollution.
Reason: High biological oxygen demand means low activity of vacteria in water.

A

Both A and R are correct and R is the correct explanation of A

B

Both A and R are correct and R is not the correct explanation of A

C

Both A and R are not correct

D

A is not correct but R is correct

Text Solution

Verified by Experts

The correct Answer is:
C
Both assertion and reason are not correct.
Amount of oxygen required to breakdown the organic matter present in a certain volume of a sample of water is called Biochemical Oxygen Demand (BOD).
If BOD level is less than `5 "ppm"` water is almost pure. High biological oxygen demand means high activity of bacteria of water.
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