Methyl isocyanate (MIC) gas (TLV <1 ppm), which caused Bhopal gas tragedy in 1984 falls under the category of ______________ toxic gas?

Related Mcqs:

1. The Killer gas which caused Bhopal gas tragedy in 1984 was________________?

   A. Phosgene
   B. Methyl isocyanate (MIC)
   C. Carbon monoxide
   D. Sulphur dioxide

2. A gas is termed as non-toxic, if its maximum permissible concentration (TLV) ranges from ______________ ppm?

   A. 1000 to 2000
   B. 3000 to 6000
   C. 6000 to 9000
   D. 10000 to 100000

3. Threshold limit value (TLV) means maximum permissible/acceptable concentration. TLV of phosgene in air is about ______________ ppm (parts per million)?

   A. 0.002
   B. 0.2
   C. 1.2
   D. 4.8

4. Permissible safe limit (TLV) of _____________ toxic gas is 100-1000 parts per million (ppm)?

   A. Highly
   B. Moderately
   C. Extremely
   D. Very extremely

5. Threshold limit value (TLV) i.e., the maximum permissible safe limit of phosgene gas which Hitler used to use to kill his enemies in ‘gas chamber’ is about ______________ ppm?

   A. < 1
   B. 10-100
   C. 100-200
   D. 100-1000

6. TLV of mercury in potable (drinking) water is about ______________ ppm?

   A. 0.001
   B. 0.1
   C. 1
   D. 5

7. TLV of lead for public sewer/waste water is about ______________ ppm?

   A. 1
   B. 25
   C. 150
   D. 650

8. TLV of ammonia, nitrogen dioxide and phenol vapor in air is ______________ ppm ?

   A. 5
   B. 100
   C. 1000
   D. 2000

9. Out of the following, TLV of _______________ is maximum (about 500 ppm)?

   A. Carbon dioxide
   B. Toluene
   C. Carbon disulphide
   D. Acetaldehyde

10. ‘Safe limit’ called Threshold Limit Value (TLV) of carbon monoxide in atmospheric air is < 50 ppm. The main source of carbon monoxide pollutant in air is the____________________?

    A. Industrial chimney exhaust
    B. Automobiles exhaust
    C. Photochemical reaction in polluted atmosphere
    D. Burning of domestic fuel