Chemistry - Environmental Chemistry Question with Solution | TestHub
ChemistryEnvironmental ChemistryWater PollutionMedium2 minQB
ChemistryMediumsingle choice
A sample water have
Fe = 0.2 ppm
Aℓ = 0.2 ppm
Zn = 0.2 ppm
Cd = 0.2 ppm
Which metal is not on safe level :
Options:
Answer:
D
Solution:
Safe limits for Fe, Al and Zn are higher than 0.2 ppm, so they are within the permissible range.
Cadmium (Cd) is a highly toxic heavy metal, and its safe limit in drinking water is much lower than 0.2 ppm.
Therefore, Cd is present above the safe level in the given sample.
Hence correct answer is (D) Cd.
Stream:JEESubject:ChemistryTopic:Environmental ChemistrySubtopic:Water Pollution
⏱ 2mℹ️ Source: QB
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