Moderate

In a nitroprusside ion, the iron and NO exist as Fe(II) and NO+ rather than Fe(III) and NO. These forms can be differentiated by:

Correct answer: C. Measuring the solid state magnetic moment.

  • A. Estimating the concentration of iron
  • B. Measuring the concentration of CN-
  • C. Measuring the solid state magnetic moment.
  • D. Thermally decomposing the compound.

Explanation

The different electronic arrangements (Fe(II) vs Fe(III)) would result in a different number of unpaired d-electrons on the ron center. This difference in the number of unpaired electrons can be experimentally determined by measuring the compound's magnetic moment (paramagnetism).

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About Transition Elements

Transition elements are identified by their partially filled d subshells in atoms or common ions. The topic covers the electronic structure of d-block elements, including the filling order of 4s and 3d orbitals, variable oxidation states and the distinction between transition elements and elements with completely filled d subshells.

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