Assertion : Water pollutants are measured by | vedclass

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Question

(A) $BOD$ (Biochemical Oxygen Demand) refers to the amount of dissolved oxygen that would be consumed if all the organic matter in one liter of water

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If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.

Vedclass · Answer

(A) $BOD$ (Biochemical Oxygen Demand) refers to the amount of dissolved oxygen that would be consumed if all the organic matter in one liter of water were oxidized by bacteria.The greater the $BOD$ of waste water,the more is its polluting potential.Therefore,$BOD$ is used as a measure of the amount of organic matter (pollutants) present in water.Since the Reason explains why $BOD$ is used as a measure of pollution,both statements are correct and the Reason is the correct explanation of the Assertion.

Assertion : Water pollutants are measured by $BOD$.
Reason : If $BOD$ is more,the water is polluted.

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Assertion : Water pollutants are measured by $BOD$.Reason : If $BOD$ is more,the water is polluted.