Select the correct statement among the following.
Select the correct statement among the following.
Option 1 -
The prescribed upper limit concentration of lead in drinking water is about 50 ppm
Option 2 -
Na3AsO3 is used as pesticide
Option 3 -
Excessive nitrate ion in drinking water can cause methemoglobinemia
Option 4 -
Photochemical smog occurs in cool humid climate
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1 Answer
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Correct Option - 3
Detailed Solution:Excessive nitrate in drinking water causes methemoglobinemia
Similar Questions for you
–I effect ∝ Acidic strength
+I effect ∝ Basic strength
* Most stable anion due to maximum –I effect.
* Most acidic
with increase in separation of screen from slits plane, fringe width increases.
Excessive nitrate in drinking water causes methemoglobinemia
Release of toxic/undesirable materials in the environment.
Classical smog contains SO2
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