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# $CF_2Cl_2+hv\rightarrow CF_2Cl+A,CFCl_3+hv\rightarrow CFCl_2+B$. Which of the following is B?

$\begin{array}{1 1}(a)\;Cl\\(b)\;Cl_2\\(c)\;Cl_3\\(d)\;FCl\end{array}$

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A)
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• The set of reaction shown above is the substitution reaction where the chlorine gets replaced by a higher electronegative atom i.e., F in presence of sunlight.
$CFCl_3+hv\rightarrow CFCl_2+Cl$
$CF_2Cl_2+hv\rightarrow CF_2Cl+Cl$
$CF_2Cl+hv\rightarrow CF_3+Cl$
Hence B is $Cl$
Hence (a) is the correct answer.