Assertion : [Fe(CN)_6]^ 3- has d^2 s p^3 type hybridisation. Reason: [Fe(CN)_6]^ 3- ion shows magnetic moment corresponding to two unpaired electrons.

Correct answer: C. If assertion is true but reason is false. [Fe(CN)_6]^ 3- ion shows magnetic moment corresponding to one unpaired electron.

AIIMS 2017

AIIMS 2017 · Chemistry · Coordination Compounds

Assertion : [Fe(CN)_6]^ 3- has d^2 s p^3 type hybridisation....

Assertion :

\left[\mathrm{Fe}(\mathrm{CN})_6\right]^{3-}

has

d^2 s p^3

type hybridisation. Reason:

\left[\mathrm{Fe}(\mathrm{CN})_6\right]^{3-}

ion shows magnetic moment corresponding to two unpaired electrons.

AIf both assertion and reason are true and reason is the correct explanation of assertion.
BIf both assertion and reason are true but reason is not the correct explanation of assertion.
CIf assertion is true but reason is false.
DIf both assertion and reason are false.

C. If assertion is true but reason is false.

\left[\mathrm{Fe}(\mathrm{CN})_6\right]^{3-}

ion shows magnetic moment corresponding to one unpaired electron.