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Which aerosols deplete ozone?...

Which aerosols deplete ozone?

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Aerosols such as chlorofluorocarbons (CFCs) viz. freon `(CCl_(2)F_(2))`, depletes ozone layer by supplying Cl· free radicals, which are responsible for the conversion of `O_(3)` to `O_(2)` :
`Cl_(2)CF_(2)(g)overset(hv)tocdotCl(g)+cdot"CC"lF_(2)(g)`
`cdotCl(g)+O_(3)(g)toClOcdot(g)+O_(2)(g)`
`ClOcdot(g)tocdotCl(g)+cdotO(g)`
`ClOcdot(g)+cdotO(g)tocdotCl(g)+O_(2)(g)`
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CHHAYA PUBLICATION-P-BLOCK ELEMENTS-NCERT EXERCISE QUESTIONS
  1. Why is dioxygen a gas but sulphur a solid?

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  2. Knowing the electron gain enthalpy values for O to O^(-) and OtoO^(2-)...

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  3. Which aerosols deplete ozone?

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  4. Describe manufacture of H(2)SO(4) by contact process.

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  5. How is SO(2) an air pollutant?

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  6. Why are halogens strong oxidising agents?

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  7. Explain why fluorine forms only one oxoacid, HOF.

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  8. Explain why inspite of nearly the same electronegativity, oxygen forms...

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  9. Write two uses of ClO(2).

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  10. Why are halogens coloured?

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  11. Write the reactions of F(2) and Cl(2) with water.

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  12. How can you prepare Cl(2) from HCl and HCl from Cl(2)? Write reactions...

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  13. What inspired N. Bartlett for carrying out reaction between Xe and PtF...

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  14. What are the oxidation states of P in the following: H(3)PO(3)

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  15. What are the oxidation states of P in the following: PCl(3)

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  16. What are the oxidation states of P in the following: Ca(3)P(2)

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  17. What are the oxidation states of P in the following: Na(3)PO(4)

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  18. What are the oxidation states of P in the following: POF(3) ?

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  19. Write balanced equations for the following: NaCl is heated with sulp...

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  20. Write balanced equations for the following: Cl(2) gas is passed into...

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