The gas 'A' is having|Environmental Chemistry|JEE MAINS 2021

JEE MAIN 2021

27-08-21 S1

Question

The gas 'A' is having very low reactivity reaches to stratosphere. It is non–toxic and non–flammable but dissociated by UV—radiations in stratosphere. The intermediates formed initially from the gas 'A' are :

Select the correct option:

$\mathrm{Cl} \dot{\mathrm{O}}+\dot{\mathrm{C}} \mathrm{F}_2 \mathrm{Cl}$

$\mathrm{Cl} \dot{\mathrm{O}}+\dot{\mathrm{CH}}_3$

$\dot{\mathrm{C}} \mathrm{H}_3+\mathrm{CF}_2 \mathrm{Cl}$

$\dot{\mathrm{Cl}}+\mathrm{CF}_2 \mathrm{Cl}$

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

In stratosphere CFCs get broken down by powerful UV radiations releasing Cl*
$\mathrm{CF}_2 \mathrm{Cl}_2(\mathrm{~g}) \xrightarrow{\text { U.V. }} \mathrm{Cl}^*(\mathrm{~g})+{ }^* \mathrm{CF}_2 \mathrm{Cl}(\mathrm{g})$

Question Tags

JEE Main

Chemistry

Easy

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