Which of the following air pollutants is more dangerous for ozone layer ?

Related Mcqs:

1. In which of the following layer of atmosphere there is more thickness of ozone layer ?

   A. troposphere
   B. stratosphere
   C. mesosphere
   D. photosphere

2. Ozone hole is substantial depletion of ozone in every year during__________________?

   A. Aug – Nov
   B. Sep – Nov
   C. Nov – Dec
   D. Dec – Jan

3. Ozone is formed in the upper layer of the atmosphere from oxygen by action of:____________?

   A. Free radicals
   B. Cosmic rays
   C. Nitrogen oxides 
   D. UV -rays

   Submitted by: Said wali shah

4. When the atoms of third layer are arranged in such a way that they directly lie above the atoms of first layer then this arrangement is called_________________?

   A. ABAB (hexagonal)
   B. ABCABC (Cubic)
   C. Orthor hombic
   D. Rhombohedral

5. Pollutants have adverse effect over_________________?

   A. Biosphere
   B. Ecosystem
   C. Both a & b
   D. Hydrosphere

6. A single chlorine free radical can destroy how many ozone molecules ?

   A. 10
   B. 100
   C. 10000
   D. 100000

7. which Compound Destroy The OZONE ?

   A. CFCs
   B. CH3COOH
   C. BOTH A & B
   D. None Of These

   Submitted by: Ali Jan

8. The rate of formation of ozone depends on the flux of:

   A. visible radiation
   B. Ultra violet radiation
   C. Infrared radiation
   D. Gamma rays

   Submitted by: Said wali shah

9. Which of the following noble gases is abundant in air?

   A. Neon
   B. Helium
   C. Argon
   D. Methane

   Submitted by: Malik Asghar Hussain

10. When benzene is heated in air with V2O5 at 450°C yields_________________?

    A. Phenol
    B. Maleic anhydride
    C. Glyoxal
    D. Benzoic acid