If a paper moistened with lead acetate for five minutes when placed in manhole turns black. The sewer certainly contains________?

Academy of PakistanTest & Learning

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Academy of PakistanTest & Learning

804Active Users

38Civil EngineeringMedium

AOxygen

BMethane

CCarbon dioxide

DHydrogen sulphide

Correct answer

D. Hydrogen sulphide

Explanation

The correct answer is Hydrogen sulphide.

If a paper moistened with lead acetate for five minutes when placed in manhole turns black. The sewer certainly contains________? - Answer and Explanation | Academy of Pakistan