Which of the following industries discharge mercury as a pollutant ?

Related Mcqs:

1. Arsenic pollutant is not generated in _______________ industries?

   A. Tanneries
   B. Glass & ceramic
   C. Beverages
   D. Any of these

2. There are thirteen metals which are treated as pollutants. Which of the following metals is not a pollutant ?

   A. Mercury
   B. Arsenic
   C. Aluminium
   D. Lead

3. Which of the following is not a weightless pollutant ?

   A. SPM
   B. Thermal pollution
   C. Radioactive rays
   D. Noise pollution

4. Which of the following is the most lethal water pollutant ?

   A. Phenol and cyanide
   B. Chlorine
   C. Alkalis
   D. Suspended solids

5. Which of the following is the most severe air pollutant ?

   A. Hydrocarbons
   B. NOx
   C. SO2
   D. CO

6. Which of the following is the common pollutant emitted from metallurgical smelters, thermal power plant and cement plants ?

   A. NOx
   B. Hg
   C. SO2
   D. F

7. Which of the following is a secondary air pollutant ?

   A. Photochemical smog
   B. Sulphur dioxide
   C. Nitrogen dioxide
   D. Dust particles

8. Which of the following is not a secondary air pollutant ?

   A. Ozone
   B. Photochemical smog
   C. Sulphur dioxide
   D. All A., B. & C.

9. Main pollutant present in automobile exhaust is_________________?

   A. CO
   B. CO2
   C. NO
   D. Hydrocarbons

10. Lead exhausted in the atmosphere by automobiles using leaded petrol (i.e. tetraethyl lead for improving octane number) is a lethal air pollutant which causes_________________?

    A. Paralysis of muscles & loss of appetite
    B. Nervous depression
    C. Gastritis and diarrhea
    D. All A., B. and C.