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Which of the following is the correct order of increasing the bond length?

$\begin{array}{1 1}(a)\;F_2 < Br_2 < Cl_2 < I_2\\(b)\;F_2 < Cl_2 < Br_2 < I_2\\(c)\;I_2 < Br_2 < Cl_2 < F_2\\(d)\;I_2 < Cl_2 < Br_2 < F_2\end{array}$

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$F-F(144) < Cl-Cl (199) < Br-Br(228) < I-I(267)$
Hence (b) is the correct answer.
answered Mar 7, 2014 by sreemathi.v
 

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