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Periodicity

Are edta^4- a...

Question

Are edta^4- and NCS^1- weak or strong ligands? On bonding with central metal atom will these form high or low spin complexes?

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Q. Carbon donor ligands are strong ligands and usually forms low spin complexes. Among the complexes given below, select the high spin complex.

Q. Tetrahedral complexes are formed:
I : where the central metal has a low oxidation state
II : where ligands are weak field
III : where the electronic configuration of the central metal is ,

d^{0}, d^{5}

d^{10}

Q. A d-block element forms octahedral complex, but its spin magnetic moment remains same either in strong field or in weak field ligand. Which of the following is/are correct ?

Q. Assertion :Transition metal ion forming octahedral complexes undergo

s p^{3} d^{2}

d^{2} s p^{3}

hybridisation. Reason: Strong field ligands force the unpaired electrons of central metal ion to pair up causing

d^{2} s p^{3}

hybridisation whereas weak field ligands do not affect electronic configuration of the metal ion undergoes in

s p^{3} d^{2}

Q. The difference in the number of unpaired electrons of a metal ion in its high-spin and low-spin octahedral complexes is two.

The metal ion is :

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