Question

Calculate the oxidation state of nickel in the compound [NiCl4]^-2

Answer 1

Explanation:

O.N. of Ni in [NiCl4]²- is 2.

Explanation -

Let x be the O.N. of Ni

Then,

x - 1*4 = -2

x = 4 - 2

x = 2

Additional information -

Primary valency = O.N. of the central metal

It meas,

Primary valency of [NiCl4]²- is 2

And

Secondary valency = C.N. of the central metal

It means,

Coordination number of [NiCl4]²- is 4.

Calculation of C.N. -

Ligan * Denticity

= 4 * 1

= 4

Answer 2

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