Middle of Pyramid - Test # 36 -Coordination Compounds

Fe₂(CO)₉ is diamagnetic.Which of the following reasons is correct?
1. Presence of one CO as bridge group
2. Presence of monodentate ligand
3. Metal-metal(Fe-Fe) bond in molecule
4. Resonance hybridization of CO

Which does not obey EAN rule?
1. [Cu(NH₃)₄]²⁺
2. [Zn(OH)₄]^2-
3. [HgI₄]^2-
4. Fe(CO)₅

The coordination number and oxidation state of Cr in K₃[Cr(C₂O₄)₃] are respectively
1. 3 and +3
2. 3 and 0
3. 6 and +3
4. 4 and +2

The octahedral complex will not show geometrical isomerism is :
(A and B are monodentate ligands)
1. [MA₄B₂]
2. [MA₅B]
3. [MA₂B₄]
4. [MA₃B₃]

What is the correct IUPAC name for sodium nitroprusside?
1. Sodium pentacyanonitrosyl ferrate(II)
2. Sodium pentacyanonitrosyl ferrate(III)
3. Sodium nitroferricyanide
4. Sodium nitroferrocyanide

IUPAC name of [Pt(NH₃)₃(Br)(NO₂)Cl]Cl is:

1.	Triamminebromidochloridonitroplatinum(IV)Chloride
2.	Triamminebromonitrocholoroplatinum(IV)Chloride
3.	Triamminechlorobromonitroplatinum(IV)Chloride
4.	Triamminenitrochlorobromoplatinum(IV)Chloride

Which of the following cation does not form an amine complex with excess of ammonia?
1. Ag⁺
2. Cu²⁺
3. Cd²⁺
4. Na⁺

The coordination number of cobalt in[Co(en)₂Br₂]Cl₂ is:
1. 2
2. 4
3. 6
4. 8

Atomic number of Cr and Fe are respectively 24 and 26 which of the following is paramagnetic with the spin of electron?
1. [Cr(CO)₆]
2. [Fe(CO)₅]
3. [Fe(CN)₆]^4-
4. [Cr(NH₃)₆]³⁺

10.

Which compound among the following does not exhibit paramagnetism?
1. [Cu(NH₃)₄]Cl₂
2. FeO
3. NO
4. N₂O₄

11.

The correct IUPAC name of AlCl₃(EtOH)₄ is:
1. Aluminium (II)Chloride-4-ethanol
2. Aluminium (III)Chloride-4-ethanol
3. Aluminium (IV)Chloride-4-hydroxy ethane
4. Aluminium Chloride-4-ethanol

12.

The complex with a square planar shape and dsp² hybridization among the following is:
1. [Ni(CN)₄]^2-
2. [Cu(NH₃)₄]²⁺
3. [PtCl₄]^2-
4. All of these

13.

Glycinato ligand is :
1.
2. bidentate ligand
3. two donor sites N and O^-
4. all of the above

14.

The correct name of the compound [Cu(NH₃)₄](NO₃)₂, according to IUPAC system is:
1. cuprammonium nitrate
2. tetraamminecopper(II)dinitrate
3. tetraamminecopper(II)nitrate
4. tetraamminecopper(I)dinitrate

15.

The ionization isomer of [Cr(H₂O)₄Cl(NO₂)]Cl is:

1.	[Cr(H₂O)₄(O₂N)]Cl₂	2.	[Cr(H₂O)₄Cl₂](NO₂)
3.	[Cr(H₂O)₄Cl(ONO)]Cl	4.	[Cr(H₂O)₄Cl₂(NO₂)].H₂O

16.

Among [Ni(CO)₄],[Ni(CN)₄]^2-, [NiCl₄]^2- species, the hybridisation states of the Ni atom are, respectively (At. no. of Ni=28)
1. sp³,dsp².dsp²
2. sp³,dsp²,sp³
3. sp³,sp³,dsp²
4. dsp²,sp³,sp³

17.

The compound that will exhibit maximum ionic conductivity in aqueous solution is:
1. K₄[Fe(CN)₆]
2. [Co(NH₃)₆]Cl₃
3. [Cu(NH₃)₄]Cl₂
4. [Ni(CO)₄]

18.

The IUPAC name of [Pt(NH₃)₄NO₂Cl]SO₄ is :
1. Chloronitroplatinum(IV)sulphate
2. Tetraamminechloridonitrito-Nplatinum(IV)sulphate
3. Chloronitrotetraammineplatinum(IV)sulphate
4. Platinum(IV)tetraamminenitrochloro sulphate

19.

The probable formula for prussian blue is :
1. Fe₃[Fe(CN)₆]₂
2. Fe₂[Fe(CN)₆]₃
3. Fe₄[Fe(CN)₆]₃
4. Fe₃[Fe(CN)₆]₄

20.

Which one is an outer orbital complex?
1. [Ni(NH₃)₆]²⁺
2. [Mn(CN)₆]^4-
3. [Co(NH₃)₆]³⁺
4. [Fe(CN)₆]^4-

21.

$π$ bonding is not involved in
1. Ferrocene
2. Dibenzene Chromium
3. Zeise's Salt
4. Grignard Reagent

22.

If excess of AgNO₃ solution is added to 100ml of 0.024M Solution of dichlorobis(ethylene diamine) cobalt(III) Choloride, how many moles of AgCl will be precipitated?
1. 0.0012
2. 0.0016
3. 0.0024
4. 0.0048

23.

The species that cannot act as an ambidentate ligand is:

1.	$\mathrm{CN}^-$	2.	$\mathrm{NO}^-_2$
3.	$\mathrm{SCN}^-$	4.	$\mathrm{NH_3}$

24.

[Cr(en)₂Br₂]⁺ can show
(1) Optical isomerism
(2) Geometrical isomerism
(3) Both (1) and (2)
(4) Neither (1) nor (2)

25.

The correct statement, among the following, regarding [Mn(CN)₆]^3- is:
1. It is sp³d² hybridised and octahedral in shape
2. It is sp³d² hybridised and tetrahedral in shape
3. It is d²sp³ hybridised and octahedral in shape
4. It is dsp² hybridised and square planar in shape

26.

EAN of Fe in K₃[Fe(CN)₆] is
1. 34
2. 35
3. 36
4. 47

27.

The correct order of the stoichiometrics of AgCl formed when AgNO₃ in excess is treated with the complexes:- CoCl₃.6NH₃, CoCl₃.5NH₃, CoCl₃.4NH₃, respectively, is :
1. 1 AgCl, 3 AgCl, 2 AgCl
2. 3 AgCl, 1 AgCl, 2 AgCl
3. 3 AgCl, 2 AgCl, 1 AgCl
4. 2 AgCl, 3AgCl, 1 AgCl

28.

Which of the following statements regarding the complex ion [Mn(CN)₆]^3- is correct?.
1. It is sp³d² hybridised and octahedral.
2. It is d²sp³ hybridised and octahedral.
3. It is sp³d² hybridised and tetrahedral.
4. It is dsp² hybridised and square planar.

29.

The hybridisation of Ni in the complex [Ni(CN)₄]^2- is:
(Atomic number of Ni = 28)
1. dsp²
2. sp³
3. d²sp²
4. d²sp³

30.

The sum of coordination number and oxidation number of the metal M in the complex M(en)₂(C₂O₄)]Cl (where, en is ethylenediamine) is :
1. 9
2. 6
3. 7
4. 8

31.

The complex that is used as an anticancer agent is:
1. mer-[Co(NH₃)₃Cl₃
2. cis-[PtCl₂(NH₃)₂]
3. cis-K₂[PtCl₂ Br₂]
4. Na₂CoCl₄

32.

A magnetic moment of 1.73 BM will be shown by one among the following
1. [Cu(NH₃)₄]²⁺
2. [Ni(CN)₄]^2-
3. TiCl₄
4. [CoCl₆]^4-

33.

Which one of the following is an outer orbital complex and exhibits paramagnetic behaviour?
1. [Ni(NH₃)₆]²⁺
2. [Zn(NH₃)₆]²⁺
3. [Cr(NH₃)₆]³⁺
4. [Co(NH₃)₆]³⁺

34.

The complexes [CO(NH₃)₆][Cr(CN)₆] and [Cr(NH₃)₆][Co(CN)₆] are examples of:

1.	lonisation isomerism	2.	Coordination isomerism
3.	Geometrical isomerism	4.	Linkage isomerism

35.

Which of the following complex ions is not expected to absorb visible light ?
1. [Ni(CN)₄]^2-
2. [Cr(NH₃)₆]³⁺
3. [Fe(H₂O)₆]²⁺
4. [Ni(H₂O)₆]²⁺

36.

The d-electron configurations of Cr²⁺, Mn²⁺, Fe²⁺ and Ni²⁺ are 3d⁴, 3d⁵, 3d⁶ and 3d⁸respectively. Which one of the following aqua complexes will exhibit the minimum paramagnetic behaviour?
(1)[Mn(H₂O)₆]²⁺(2) [Fe(H₂O)₆]²⁺
(3) [Ni(H₂O)₆]²⁺(4) [Cr(H₂O)₆]²⁺
(At. no. Cr=24, Mn=25, Fe=26, Ni=28)

37.

Copper sulphate dissolves in excess of KCN to give :
(1) CuCN
(2) [Cu(CN)₄]^3-
(3) [Cu(CN₄]^2-
(4) Cu(CN)₂

38.

[Co(NH₃)₄(NO₂)₂]Cl can show:

1.	Linkage isomerism, ionization isomerism and optical isomerism.
2.	Linkage isomerism, ionization isomerism and geometrical isomerism.
3.	Ionisation isomerism, geometrical isomerism and optical isomerism.
4.	Ionisation isomerism, geometrical isomerism and optical isomerism.

39.

Aqueous solution of Ni²⁺contains [Ni(H₂O)₆]²⁺ and its magnetic moment is 2.83 BM. When ammonia is added in it, the magnetic moment of solution:
1. Will remain the same.
2. Will increase from 2.83 BM.
3. Will decrease from 2.83 BM.
4. Cannot be predicted theoretically.

40.

Which of the following is true about the complex $[{PtCl}_{2} (H_{2} O) ({NH}_{3})]$ ?
(1) It exhibits geometrical isomerism
(2) It is a paramagnetic complex
(3) Its geometry is a tetrahedron
(4) Platinum is ${sp}^{3}$ hybridized

41.

Which of the following isomerism, exhibited by $[{CrCl}_{2} (OH)_{2} ({NH}_{3})_{2}]$ ?
(1)Ionization
(2) Geometrical
(3) Hydrate
(4) Linkage

42.

The hybridization of the complex $[{CrCl}_{2} ({NO}_{2})_{2} ({NH}_{3})_{2}]^{-}$ is:
1. ${sp}^{3} d^{2}$
2. $d^{2} {sp}^{3}$
3. ${sp}^{3} d$
4. Cannot be predicted

43.

The following complexes are given :
(1) $trans - [Co ({NH}_{3})_{4} {Cl}_{2}]^{+}$
(2) $cis - [Co ({NH}_{3})_{2} (en)_{2}]^{3 +}$
(3) $trans - [Co ({NH}_{3})_{2} (en)_{2}]^{3 +}$
(4) ${NiCl}_{4}^{2 -}$
(5) ${TiF}_{6}^{2 -}$
(6) ${CoF}_{6}^{3 -}$
Choose the correct code:
(a) (1),(2) are optically active, (3) is optically inactive
(b) (2) is optically active ; (1), (3) are optically inactive
(c) (4), (5) are coloured and (6) is colourless
(d) (4) is coloured and (5),(6) are colourless

44.

A compound among the following has both fac-mer and optical isomers is:
1. [Co(NH₃)₅(NO₃)]
2. [Co(en)₃]³⁻
3. [Co(gly)₃]
4. None of the above

45.

An octahedral complex of ${Co}^{3 +}$ is diamagnetic. The hybridisation involved in the formation of the complex is:
1.   ${sp}^{3} d^{2}$
2.   ${dsp}^{2}$
3.   $d^{2} {sp}^{3}$
4.   ${sp}^{3} d$

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1.	\(\mathrm{CN}^-\)	2.	\(\mathrm{NO}^-_2\)
3.	\(\mathrm{SCN}^-\)	4.	\(\mathrm{NH_3}\)

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