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

The coordination number of `Ni^(2+)` is 4
`NiCI_(2) + KCN` (excess) gives `A` (cyano complex)
`NiCI_(2)+conc.HCI` (excess) gives `B` (Chloro complex)
The `IUPAC` name of `A` and `B` are .

A

Potassium tetracyanonickelate (Il), potassium tetrachloronickelate (II)

B

Tetracyanopotassiumnickelate (II), teterachlorpotassiumnickelate (II)

C

Nickel (II), tetrachloronickel (II)

D

Potassium tetracyanonickel (II), potassium tetrachloronickel (II)

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The correct Answer is:
A
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