Statement 1: F^- ion is weak ligand and forms outer orbital complex. Statement 2: F^- ion can not force the electrons of d_ z^2 and d_ x^2-y^2 orbitals to occupy d_ xy , d_ yz and d_ zx orbitals of the same shell.

JEE Advanced Chemistry question

Statement 1: ion is weak ligand and forms outer orbital complex. Statement 2: ion can not force the electrons of and orbitals to occupy and orbitals of the same shell.

(A)Assertion is True, Reason is True; Reason is correct explanation for AssertionCorrect
(B)Assertion is True, Reason is True; Reason is not correct explanation for Assertion
(C)Assertion is True, Reason is False
(D)Assertion is False, Reason is True

Answer: (A)

Solution

is indeed a weak-field ligand, meaning it cannot supply enough crystal-field splitting energy to force pairing of electrons into the lower set; as a result the complex uses the outer orbitals rather than the inner orbitals for hybridisation, i.e., forms an outer-orbital

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Question ID VK-159994