Statement-1 : $∆_{0}$ increases in the order of ${[C r C l_{6}]}^{3 -} < [C r {(C N)}_{6}]^{3 -} < {[C r {(C_{2} O_{4})}_{3}]}^{3 -}$
Statement-2 : Stronger the ligand field higher will be $∆_{0}$ value.

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Statement-1 is false, statement-2 is true.

Statement-1 is true, statement-2 is false.

Statement-1 is true, statement-2 is true and statement-2 is NOT the correct explanation for statement-1.

Statement-1 is true, statement-2 is true and statement-2 is correct explanation for statement-1.

answer is D.

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Detailed Solution

According to spectrochemical series $C N^{-}$ is stronger field ligand, so it has more $∆_{0}$
value, so correct order of $∆_{0}$ for these complex ions.

${[C r C l_{6}]}^{3 -} < [C r {(C_{2} O_{4})}_{3}]^{3 -} < [C r {(C N)}_{6}]^{3 -}$

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