Given below are two statements:Statement I: [ | vedclass

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(B) Statement $I$ is true:The crystal field splitting energy $(\Delta_{t})$ depends on the strength of the ligand. According to the spectrochemical se

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Statement $I$ is true but Statement $II$ is false

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(B) Statement $I$ is true:The crystal field splitting energy $(\Delta_{t})$ depends on the strength of the ligand. According to the spectrochemical series, the field strength of $Cl^{-}$ is greater than $Br^{-}$.Therefore, $\Delta_{t}$ for $[CoCl_{4}]^{2-}$ is greater than that for $[CoBr_{4}]^{2-}$.Since the energy of absorbed light is directly proportional to $\Delta_{t}$ $(E = h
u = \Delta_{t})$, $[CoBr_{4}]^{2-}$ absorbs light of lower energy than $[CoCl_{4}]^{2-}$.Statement $II$ is false:The field strength of $I^{-}$ is weaker than $Cl^{-}$.Therefore, the energy separation $(\Delta_{t})$ in $[CoI_{4}]^{2-}$ is less than in $[CoCl_{4}]^{2-}$, not more.

$x$	$1$	$2$	$3$	$4$
$y$	$0.7111$	$0.7222$	$0.7333$	$0.7444$

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