Ozone in the stratosphere is depleted by:

C F_{2} C l_{2}

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C_{7} F_{1} 6

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C_{6} H_{6} C l_{6}

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C_{6} F_{6}

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Solution

The correct option is B $C_{7} F_{1} 6$
In the stratosphere, Chloro flurocarbon(CFC) are cleaved by high energy UV rays and following reaction takes place.
$C F_{2} C l_{2} U V - - \to C F_{2} C l + C l$
$C l + O_{3} \to C l O + O_{2}$
$C l O + O_{3} \to C l + 2 O_{2}$

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