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

Related Mcqs:

1. which Compound Destroy The OZONE ?

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

   Submitted by: Ali Jan

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. A process in which large molecules are broken up into into smaller molecules is called as_____.

   A. Reforming
   B. Cracking
   C. Refining
   D. Isomerization

   Submitted by: Aamir khan Hullio

4. Methyl radical is ___________?

   A. Sp3 hybrid having 8 electrons
   B. Sp2 hybrid having 6 electron
   C. sp2 hybrid having 7 electron
   D. Sp hybrid having linear geometry

   Submitted by: Aneela shabbir

5. Which of the following terms is used for the mass of chlorine 35.5 ?

   A. relative atomic mass
   B. mass number
   C. atomic weight
   D. relative isotopic mass

6. Consider the following reaction- 2KCIO3 + H2C2O4 + H2SO4 ? K2SO4 + 2H2O + 2CO2 + Oxide Which oxide of chlorine is produced in the above reaction ?

   A. Cl2O
   B. ClO2
   C. Cl2O6
   D. Cl2O7

7. Which is the paramagnetic oxide of chlorine ?

   A. Cl2O7
   B. Cl2O6
   C. ClO2
   D. all

8. The colour of chlorine gas is_______________?

   A. pale yellow
   B. freenish yellow
   C. reddish brown
   D. grayish black

9. Chlorine Cl when attached to benzene has________?

   A. +I and +R effect
   B. -1 and +R effect
   C. +1 and -R effect
   D. -I and -R effect

   Submitted by: Muhammad Ali Kunbhar

10. Z number for chlorine is __________?

    A. 35.5
    B. 17
    B. 15
    D. 21

    Submitted by: Aamir khan Hullio