AP EAMCET201724 Apr 2017Evening ShiftChemistryEnvironmental ChemistryActual
Which of the following statements are correct? a) F ⁻ ion concentration above 2 ppm causes brown mottling of teeth b) The maximum limit of nitrate in drinking water is 400 ppm c) Depletion of ozone layer leads to cataract and skin cancer d) The irritant red haze in the traffic is due to oxides of sulphur
Options
- Ab, c
- Ba, d
- Cb, d
- Da, c
Correct answer
D. a, c
Step-by-step solution
No solution. Refer to answer key.