Coordination Compounds

15 Questions | By Jagranjosh | Updated: Mar 21, 2022 | Attempts: 2509

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Coordination complexes in chemistry consist of atoms, which are metallic in nature and an array of boundless ions that are known as complexing agents. Find out about this and more through the quiz below. All the best.

Questions and Answers

1.

When 1 mol of CrCl₃.6H₂O is treated with excess of AgNO₃, 3 mol of AgCl is obtained. The formula of the complex is
- A.
  
  [CrCl₃(H₂O)₃].3H₂O
- B.
  
  [CrCl₂(H₂O)₄]Cl.2H₂O
- C.
  
  [CrCl(H₂O)₅]Cl₂.H₂O
- D.
  
  [Cr(H₂O)₆]Cl₃
2.

The compounds [Co(SO₄)(NH₃)₅]Br and [Co(SO₄)(NH₃)₅]Cl represent:
- A.
  
  Linkage isomerism
- B.
  
  Ionisation isomerism
- C.
  
  Coordination isomerism
- D.
  
  No isomerism
3.

2,4- Dinitrophenyl hydrazine is an example for:
- A.
  
  Tridentate ligand
- B.
  
  Monodentate ligand
- C.
  
  Polydentate ligand
- D.
  
  Didentate ligand
4.

Which of the following complex ion shows geometrical isomerism?
- A.
  
  [Cr(H₂O)₄Cl₂]⁺
- B.
  
  [Pt(NH₃)₃Cl]
- C.
  
  [Co(NH₃)₆]³⁺
- D.
  
  [Co(CN)₅(NC)]^3-
5.

The oxidation state of Fe in the brown ring complex [Fe(H₂O)₅NO]SO₄ is:
- A.
  
  + 1
- B.
  
  + 2
- C.
  
  + 3
- D.
  
  + 4
6.

Which of the following can exhibit geometrical isomerism?
- A.
  
  [MnBr₄]^2-
- B.
  
  [Pt(NH₃)₃Cl]⁺
- C.
  
  [PtCl₂P(C₂H₅)₃]₂
- D.
  
  [Fe(H₂O)₅NO]²⁺
7.

According to IUPAC nomenclature, sodium nitroprusside is named as:
- A.
  
  Sodium nitroferricyanide
- B.
  
  Sodium nitroferrocyanide
- C.
  
  Sodium pentacyano nitrosylferrate (II)
- D.
  
  Sodium pentacyano nitrosylferrate (III)
8.

Hybridisation and shape of K₃[Co(CO₃)₃] is:
- A.
  
  D²sp³and Octahedral
- B.
  
  Sp³d² and Octahedral
- C.
  
  Dsp² and square planar
- D.
  
  Sp³ and tetrahedral
9.

Total number of possible isomers for the complex compound [Cu^II(NH₃)₄][Pt^IICl₄] are:
- A.
  
  3
- B.
  
  4
- C.
  
  5
- D.
  
  6
10.

Square planar complexes of the type MABXL (where A, B, X and L are unidentates) show:
- A.
  
  Two cis and one trans isomer
- B.
  
  Two trans and one cis isomer
- C.
  
  Two cis and two trans isomer
- D.
  
  One cis and one trans isomer
11.

In spectrochemical series, chlorine is above water i.e., Cl > H₂O, this is due to:
- A.
  
  Good π-acceptor properties of Cl
- B.
  
  Strong σ-donor and good π-acceptor properties of Cl
- C.
  
  Good π-donor properties of Cl
- D.
  
  Larger size of Cl than H₂O
12.

Which of the following shall form an octahedral complex?
- A.
  
  D⁴ (low spin)
- B.
  
  D⁸ (high spin)
- C.
  
  D⁶ (low spin)
- D.
  
  All of these
13.

Which of the following is diamagnetic in nature?
- A.
  
  Co³⁺, octahedral complex with weak field ligand
- B.
  
  Co³⁺, octahedral complex with strong field ligand
- C.
  
  Co²⁺ in tetrahedral complex
- D.
  
  Co²⁺ in square planar complex
14.

The value of n in the carbonyl: (CO)_n – Co – Co – (CO)_n
- A.
  
  4
- B.
  
  5
- C.
  
  6
- D.
  
  7
15.

If the length of CO bond in carbon monoxide is 1.128 Ǻ, then what is the value of CO bond length in Fe(CO)₅?
- A.
  
  1.15 Ǻ
- B.
  
  1.128 Ǻ
- C.
  
  1.72 Ǻ
- D.
  
  1.118 Ǻ