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The coordination number of Ni^(2+) is 4....

The coordination number of `Ni^(2+)` is 4.
`NiCl_(2) + KCN ("excess") rarr A ("cyano comples")`
`NiCl_(2) + conc. HCl ("excess") rarr B ("chloro complex")`
Predict the magnetic nature of A and B.

A

Potassium tetracyanidonickelate (II), potassium tetrachloridonickelate (II)

B

Tetracyanidopotassiumnickelate (II) , teterachloridopotassiumnickelate (II)

C

Tetracyanidornickel (II), tetrachloridonickel (II)

D

Potassium tetracyanidonickel (II), potassium tetrachloridonickel (II)

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The correct Answer is:
A
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