Coordination Compounds

The atomic number of cobalt is 27. The EAN of cobalt in Na₃[Co(NO₂)₄Cl₂] is

Options

(a) 35 (b) 24 (c) 36 (d) 34

Correct Answer:

36

Explanation:

EAN of Co in [Co(NO₂)₄Cl₂]³⁻ is EAN […]

Which of the following is wrongly matched

Options

(a) [Cu(NH₃)₄]²⁺ – square planar (b) [Ni(CO)₄] – neutral ligand (c) [Fe(CN)₆³⁻ – sp³d² (d) [Co(en)₃]³⁺ – follows EAN rule

Correct Answer:

[Fe(CN)₆³⁻ – sp³d²

[…]

Which compound is zero valent metal complex

Options

(a) [Cu(NH₃)₄]SO₄ (b) [Pt(NH₃)₂Cl₂] (c) [Ni(CO)₄] (d) K₃[Fe(CN)₆]

Correct Answer:

[Ni(CO)₄]

Explanation:

[Cu(NH₃)₄]SO₄ → oxidation number of Cu = +2. [Pt(NH₃)₂Cl₂] → Oxidation number of […]

An example for a double salt is

Options

(a) potassium ferricyanide (b) cobalt hexamine chloride (c) cuprous sulphate (d) Mohr’s salt

Correct Answer:

Mohr’s salt

Explanation:

Mohr’s salt is a double salt when […]

The shape of cuprammonium ion is

Options

(a) octahedral (b) square planar (c) trigonal (d) tetrahedral

Correct Answer:

square planar

Explanation:

No explanation available. Be the first to write the explanation for this […]

Which of the following is not a coordination compound

Options

(a) Cuprammonium sulphate (b) Potash alum (c) Potassium ferricyanide (d) Potassium ferrocyanide

Correct Answer:

Potash alum

Explanation:

Potash alum is not a coordination […]

The coordination number of a metal in coordination compounds is

Options

(a) sum of primary and secondary valencies (b) same as primary valency (c) same as the oxidation number of the central metal […]