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Assertion. Potassium ferrocyanide is diamagnetic whereas potassium ferricyanide is paramagnetic. Reason. Crystal field splitting in ferrocyanide ion is greater than that of ferricyanide ion.

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If both ASSERTION and reason are TRUE, but reason is not the true explanation of the assertion
If both assertion and reason are true, but reason is not the true explanation of the assertion
If assertionis true, but reason is false
If both assertion and reason are false

Solution :CORRECT R. In FERROCYANIDE, Fe is in oxidation state + 2 while in ferricyanide, Feis in oxidation state + 3. Higher the oxidation state of the metal, greater is the crystal FIELD splitting.


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