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(B) $1)$ The given compounds are coordination isomers. The first complex $[Cr(NH_3)_6][Cr(NO_2)_6]$ consists of a $3+:3-$ electrolyte system,while the

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Measurement of molar conductance

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(B) $1)$ The given compounds are coordination isomers. The first complex $[Cr(NH_3)_6][Cr(NO_2)_6]$ consists of a $3+:3-$ electrolyte system,while the second complex $[Cr(NH_3)_4(NO_2)_2][Cr(NH_3)_2(NO_2)_4]$ consists of a $1+:1-$ electrolyte system.$2)$ Molar conductance $(\Lambda_m)$ depends on the number of ions and the magnitude of the charge on the ions. Since the charge on the complex ions differs between the two isomers ($3$ vs $1$),their molar conductances will be significantly different.$3)$ Magnetic moments depend on the number of unpaired electrons. Since both complexes contain $Cr^{3+}$ ions in an octahedral field,they have the same number of unpaired electrons and similar magnetic properties.$4)$ Therefore,measurement of molar conductance is the most effective method to distinguish these isomers.

Other than $X$-ray diffraction,how can the following pairs of isomers be distinguished from one another?
$[Cr(NH_3)_6][Cr(NO_2)_6]$ and $[Cr(NH_3)_4(NO_2)_2][Cr(NH_3)_2(NO_2)_4]$

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Other than $X$-ray diffraction,how can the following pairs of isomers be distinguished from one another?$[Cr(NH_3)_6][Cr(NO_2)_6]$ and $[Cr(NH_3)_4(NO_2)_2][Cr(NH_3)_2(NO_2)_4]$