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Class XII Chemistry Coordination Compounds 2: Valence Bond Theory

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Question 1

The EAN of nickel in K₂[Ni(CN)₄] is :

Question 2

The total number of ligands attached to the central ions is known as:

Question 3

In the co-ordination compound, K₄[Ni(CN)₄], the oxidation state of nickel is

Question 4

The magnetic moment (spin only) of [NiCl₄]^2– is :

Question 5

Nickel (Z = 28) combines with a uninegative monodentate ligand X^– to form a paramagnetic complex [NiX₄]^2–. The number of unpaired electron(s) in the nickel and geometry of this complex ion are, respectively

Question 6

The correct order of magnetic moments (spin only values in B.M.) among is
(Atomic numbers: Mn = 25; Fe = 26, Co =27)

Question 7

Which of the following is the most likely structure of CrCl₃.6H₂O, if 1/3 of total chlorine of the compound is precipitated by adding AgNO₃ to its aqueous solution:

Question 8

In Dodecacarbonyl dicobalt, the oxidation state of Cobalt is:

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