Single Choice

The value of x which appears in the complex $${\left[ {{\text{Ni}}{{\left( {{\text{CN}}} \right)}_{\text{4}}}} \right]^x}$$ is

A2
B-2
Correct Answer
C0
D4

Solution

$${\left[ {{\text{Ni}}{{\left( {{\text{CN}}} \right)}_{\text{4}}}} \right]^x}$$

Oxidation state of $$Ni=+2$$; Oxidation state of $$CN=-1$$

$$x=+2+4\times (-1) \Rightarrow x=-2$$

SIMILAR QUESTIONS

Coordination Compounds

Which of the following has longest $$C-O$$ bond length? (Free C-O bond length in $$CO$$ is $$1.128\overset {\circ}{A}$$.)

Coordination Compounds

Which of the following processes does not involve oxidation of iron?

Coordination Compounds

The sum of coordination number and oxidation number of the metal $$M$$ in the complex $$[M(en)_2(C_2O_4)]Cl$$ (where en is ethylenediamine) is:

Coordination Compounds

State the maximum number of possible optical isomers in 1-bromo-2-methyl cyclobutane.

Coordination Compounds

Consider the following complex : $$[Co(NH_{3})_{5}CO_{3}]ClO_{4}$$ The coordination number, oxidation number, no. of $$d-electrons$$ and number of unpaired $$d-electrons$$ on the metal are respectively

Coordination Compounds

What is the oxidation number of $$Fe$$ in $$[Fe(H_{2}O)_{5}(NO)]^{2+}$$ ion?

Coordination Compounds

Which compound is zero valent metal complex?

Coordination Compounds

Oxidation state of nitrogen is incorrectly given in:

Coordination Compounds

The oxidation number of chromium in sodium tetrafluoro-oxochromate complex is

Coordination Compounds

The pair of compounds in which metals are in the highest possible oxidation state is

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