Consider the following complex ions P = [FeF₆]^3-, Q = [V(H₂O)₆]²⁺, R = [Fe(H₂O)₆]²⁺. The correct order of the complex ions, according to their spin only magnetic moment values (in B.M.) is:

Which of the following electronic configuration would be associated with the highest magnetic moment?

The spin-only magnetic moment value of square planar complex [Pt(NH₃)₂Cl(NH₂CH₃)]Cl is ____ B.M. (nearest integer). (Given atomic number for Pt: 78, N: 7, Cl: 17, H: 1, C: 6)

Identify from the following species in which d²sp³ hybridization is shown by central atom:

In which one of the following metal carbonyls, CO forms a bridge between metal atoms?

The oxidation number of iron in the compound formed during brown ring test for NO^3- ion is ____

A reagent which gives brilliant red precipitate with Nickel ions in basic medium is

The correct IUPAC name of K₂MnO₄ is

Choose the correct statements from the following: A. Ethane-1,2-diamine is a chelating ligand. B. Metallic aluminium is produced by electrolysis of aluminium oxide in presence of cryolite. C. Cyanide ion is used as a ligand for leaching of silver. D. Phosphine acts as a ligand in Wilkinson catalyst. E. The stability constants of Ca²⁺ and Mg²⁺ are similar to EDTA complexes.

Number of complexes which show optical isomerism among the following is ____: cis-[Cr(ox)₂Cl₂]^3-, [Co(en)₃]³⁺, cis-[Pt(en)₂Cl₂]²⁺, cis-[Co(en)₂Cl₂]⁺, trans-[Pt(en)₂Cl₂]²⁺, trans-[Cr(ox)₂Cl₂]^3-

The coordination geometry around the manganese in decacarbonyldimanganese (0)

The 'Spin only' Magnetic moment for [Ni(NH₃)₆]²⁺ is ____ × 10^-1 BM. (given = Atomic number of Ni: 28)

The correct statements from following are: A. The strength of anionic ligands can be explained by crystal field theory. B. Valence bond theory does not give a quantitative interpretation of kinetic stability of coordination compounds. C. The hybridization involved in formation of [Ni(CN)₄]^2- complex is dsp². D. The number of possible isomer(s) of cis-[PtCl₂(en)₂]²⁺ is one. Choose the correct answer from the options given below:

Select the option with correct property / Select the correct option: [Ni species are in the options]

Match List I with List II. Figure: List-I (Complexion): A. [Cr(H₂O)₆]³⁺, B. [Fe(H₂O)₆]³⁺, C. [Ni(H₂O)₆]²⁺, D. [V(H₂O)₆]³⁺. List-II (Electronic Configuration): I. t_2g² e_g⁰, II. t_2g³ e_g⁰, III. t_2g³ e_g², IV. t_2g⁶ e_g². Stem not solvable without the figure.

Which of the following complex is homoleptic?

Given below are two statements: Statement (I): A solution of [Ni(H₂O)₆]²⁺ is green in colour. Statement (II): A solution of [Ni(CN)₄]^2- is colourless. In the light of the above statements, choose the most appropriate answer from the options given below:

[Co(NH₃)₆]³⁺ and [CoF₆]^3- are respectively known as:

Number of ambidentate ligands among the following is ____: NO₂^-, SCN^-, C₂O₄ ^2-, NH₃, CN^-, SO₄ ^2-, H₂O

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): The total number of geometrical isomers shown by [Co(en)₂Cl₂]⁺ complex ion is three. Reason (R): [Co(en)₂Cl₂]⁺ complex ion has an octahedral geometry. In the light of the above statements, choose the most appropriate answer from the options given below:

The correct order of ligands arranged in increasing field strength.

Consider the following complexes. (A) [CoCl(NH₃)₅]²⁺, (B) [Co(CN)₆]^3-, (C) [Co(NH₃)₅(H₂O)]³⁺, (D) [Cu(H₂O)₆]²⁺. The correct order of A, B, C and D in terms of wavenumber of light absorbed is:

The 'spin only' magnetic moment value of MO₄ ^2- is ____ BM. (Where M is a metal having least metallic radii among Sc, Ti, V, Cr, Mn and Zn). (Given atomic number: Sc = 21, Ti = 22, V = 23, Cr = 24, Mn = 25 and Zn = 30)

Number of complexes with even number of electrons in t_2g orbitals is - [Fe(H₂O)₆]²⁺, [Co(H₂O)₆]²⁺, [Co(H₂O)₆]³⁺, [Cu(H₂O)₆]²⁺, [Cr(H₂O)₆]²⁺

An octahedral complex with the formula CoCl₃.nNH₃ upon reaction with excess of AgNO₃ solution given 2 moles of AgCl. Consider the oxidation state of Co in the complex is 'x'. The value of 'x + n' is

The correct sequence of ligands in the order of decreasing field strength is

In which of the following complexes the CFSE, Δ_o, will be equal to zero?

From the magnetic behaviour of [NiCl₄]^2- (paramagnetic) and [Ni(CO)₄] (diamagnetic), choose the correct geometry and oxidation state.

The complex of Ni²⁺ ion and dimethyl glyoxime contains ____ number of Hydrogen (H) atoms.

The correct order of the following complexes in terms of their crystal field stabilization energies is : [complexes are in the options]

Identify the homoleptic complex(es) that is/are low spin. (A) [Fe(CN)₅NO]^2-, (B) [CoF₆]^3-, (C) [Fe(CN)₆]^4-, (D) [Co(NH₃)₆]³⁺, (E) [Cr(H₂O)₆]²⁺. Choose the correct answer from the options given below:

The d-electronic configuration of an octahedral Co (II) complex having magnetic moment of 3.95 BM is

The correct set of ions (aqueous solution) with same colour from the following is:

The complex that shows Facial - Meridional isomerism is:

Identify the coordination complexes in which the central metal ion has d⁴ configuration. (A) [FeO₄]^2-, (B) [Mn(CN)₆]^3-, (C) [Fe(CN)₆]^3-, (D) Cr₂(O-C-Me)₄(H₂O)₂, (E) [NiF₆]^2-. Choose the correct answer from the options given below:

One mole of the octahedral complex compound Co(NH₃)₅Cl₃ gives 3 moles of ions on dissolution in water. One mole of the same complex reacts with excess of AgNO₃ solution to yield two moles of AgCl(s). The structure of the complex is:

Match List - I with List - II. List - I (Transition metal ion): (A) Ti³⁺, (B) V²⁺, (C) Ni²⁺, (D) Sc³⁺. List - II (Spin only magnetic moment (B.M.)): (I) 3.87, (II) 0.00, (III) 1.73, (IV) 2.84. Choose the correct answer from the options given below:

The conditions and consequence that favours the t_2g³ e_g¹ configuration in a metal complex are :

The metal ion whose electronic configuration is not affected by the nature of the ligand and which gives a violet colour in non-luminous flame under hot condition in borax bead test is

Total number of molecules/species from following which will be paramagnetic is O₂, O²⁺, O^2-, NO, NO₂, CO, K₂[NiCl₄], [Co(NH₃)₆]Cl₃, K₂[Ni(CN)₄]

Match List - I with List - II. List - I (Complex): (A) [CoF₆]^3-, (B) [NiCl₄]^2-, (C) [Co(NH₃)₆]³⁺, (D) [Ni(CN)₄]^2-. List - II (Hybridisation of central metal ion): (I) d²sp³, (II) sp³, (III) sp³d2, (IV) dsp². Choose the correct answer from the options given below:

Match List - I with List - II. Figure: List-I (Complex): (A) [MnBr₄]^2-, (B) [FeF₆]^3-, (C) [Co(C₂O₄)₃]^3-, (D) [Ni(CO)₄]. List-II (Hybridisation & Magnetic characters): (I) d²sp³ & diamagnetic, (II) sp³d2 & paramagnetic, (III) sp³ & diamagnetic, (IV) sp³ & paramagnetic. Stem not solvable without the figure.

The correct increasing order of stability of the complexes based on Δ_o value is : I. [Mn(CN)₆]^3-, II. [Co(CN)₆]^4-, III. [Fe(CN)₆]^4-, IV. [Fe(CN)₆]^3-

Consider the following low-spin complexes K₃[Co(NO₂)₆], K₄[Fe(CN)₆], K₃[Fe(CN)₆], Cu₂[Fe(CN)₆] and Zn₂[Fe(CN)₆]. The sum of the spin-only magnetic moment values of complexes having yellow colour is ____ B.M. (answer in nearest integer)

The calculated spin-only magnetic moments of K₃[Fe(OH)₆] and K₄[Fe(OH)₆] respectively are :

Identify the homoleptic complexes with odd number of d electrons in the central metal : (A) [FeO₄]^2-, (B) [Fe(CN)₆]^3-, (C) [Fe(CN)₅NO]^2-, (D) [CoCl₄]^2-, (E) [Co(H₂O)₃F₃]. Choose the correct answer from the options given below :

A transition metal (M) among Mn, Cr, Co and Fe has the highest standard electrode potential (M³⁺/M²⁺). It forms a metal complex of the type [M(CN)₆]^4-. The number of electrons present in the e_g orbital of the complex is ____

Given below are two statements: Statement (I): In octahedral complexes, when Δ_o < P high spin complexes are formed. When Δ_o > P low spin complexes are formed. Statement (II): In tetrahedral complexes because of Δ_t < P, low spin complexes are rarely formed. In the light of the above statements, choose the most appropriate answer from the options given below:

The spin-only magnetic moment value of Mn⁺ ion formed among Ni, Zn, Mn and Cu that has the least enthalpy of atomisation is ____. (in nearest integer) Here n is equal to the number of diamagnetic complexes among K₂[NiCl₄], [Zn(H₂O)₆]Cl₂, K₃[Mn(CN)₆] and [Cu(PPh₃)₃I]

The d-orbital electronic configuration of the complex among [Co(en)₃]³⁺, [CoF₆]^3-, [Mn(H₂O)₆]²⁺ and [Zn(H₂O)₆]²⁺ that has the highest CFSE is :

The type of hybridization and the magnetic property of [MnCl₆]^3- are

The number of optical isomers exhibited by the iron complex (A) obtained from the following reaction is ____: FeCl₃ + KOH + H₂C₂O₄ -> A

Match the LIST-I with LIST-II. Figure: List-I (Molecules/ion): (A) PF₅, (B) SF₆, (C) Ni(CO)₄, (D) [PtCl₄]^2-. List-II (Hybridisation of central atom): (I) dsp², (II) sp³d, (III) sp³d2, (IV) sp³. Stem not solvable without the figure (PF₅/SF₆ are hybridisation distractors).

The correct order of the complexes [Co(NH₃)₅(H₂O)]³⁺ (A), [Co(NH₃)₆]³⁺ (B), [Co(CN)₆]^3- (C) and [CoCl(NH₃)₅]²⁺ (D) in terms of wavelength of light absorbed is

Identify the diamagnetic octahedral complex ions from below ; A. [Mn(CN)₆]^3-, B. [Co(NH₃)₆]³⁺, C. [Fe(CN)₆]^4-, D. [Co(H₂O)₃F₃]. Choose the correct answer from the options given below:

Which one of the following complexes will have Δ_o = 0 and μ = 5.96 B.M?

Number of stereoisomers possible for the complexes, [CrCl₃(py)₃] and [CrCl₂(ox)₂]^3- are respectively (py = pyridine, ox = oxalate)

A metal complex with a formula MCl₄.3NH₃ is involved in sp³d2 hybridisation. It upon reaction with excess of AgNO₃ solution gives 'x' moles of AgCl. Consider 'x' is equal to the number of lone pairs of electron present in central atom of BrF₅. Then the number of geometrical isomers exhibited by the complex is ____.

'X' is the number of electrons in t_2g orbitals of the most stable complex ion among [Fe(NH₃)₆]³⁺, [FeCl₆]^3-, [Fe(C₂O₄)₃]^3- and [Fe(H₂O)₆]³⁺. The nature of oxide of vanadium of the type V₂OX is :

An octahedral complex having molecular composition Co.5NH₃.Cl₂.SO₄ has two isomers A and B. The solution of A gives a white precipitate with AgNO₃ solution and the solution of B gives white precipitate with BaCl₂ solution. The type of isomerism exhibited by the complex is.

The number of paramagnetic metal complex species among [Co(NH₃)₆]³⁺, [Co(C₂O₄)₃]^3-, [MnCl₆]^3-, [Mn(CN)₆]^3-, [CoF₆]^3-, [Fe(CN)₆]^3- and [FeF₆]^3- with same number of unpaired electrons is ____

'X' is the number of acidic oxides among VO₂, V₂O₃, CrO₃, V₂O₅ and Mn₂O₇. The primary valency of cobalt in [Co(H₂NCH₂CH₂NH₂)₃]²(SO₄)₃ is Y. The value of X + Y is ____.

The number of species from the following that are involved in sp³d2 hybridization is [Co(NH₃)₆]³⁺, SF₆, [CrF₆]^3-, [CoF₆]^3-, [Mn(CN)₆]^3- and [MnCl₆]^3-

Match the LIST-I with LIST-II. Figure: List-I (Complex/Species): (A) [Ni(CO)₄], (B) [Ni(CN)₄]^2-, (C) [NiCl₄]^2-, (D) [MnBr₄]^2-. List-II (Shape & magnetic moment): (I) Tetrahedral, 2.8 BM, (II) Square planar, 0 BM, (III) Tetrahedral, 0 BM, (IV) Tetrahedral, 5.9 BM. Stem not solvable without the figure.

Given below are two statements: Statement I: A homoleptic octahedral complex, formed using monodentate ligands, will not show stereoisomerism. Statement II: cis- and trans-platin are heteroleptic complexes of Pd. In the light of the above statements, choose the correct answer from the options given below:

Given below are two statements: Statement I: Among [Cu(NH₃)₄]²⁺, [Ni(en)₃]²⁺, [Ni(NH₃)₆]²⁺ and [Mn(H₂O)₆]²⁺, [Mn(H₂O)₆]²⁺ has the maximum number of unpaired electrons. Statement II: The number of pairs among {[NiCl₄]^2-, [Ni(CO)₄]}, {[NiCl₄]^2-, [Ni(CN)₄]^2-} and {[Ni(CO)₄], [Ni(CN)₄]^2-} that contain only diamagnetic species is two. In the light of the above statements, choose the correct answer from the options given below:

Given below are two statements : Statement I : The number of species among SF₄, NH₄⁺, [NiCl₄]^2-, XeF₄, [PtCl₄]^2-, SeF₄ and [Ni(CN)₄]^2-, that have tetrahedral geometry is 3. Statement II: In the set [NO₂, BeH₂, BF₃, AlCl₃], all the molecules have incomplete octet around central atom. In the light of the above statements, choose the correct answer from the options given below:

Consider the transition metal ions Mn³⁺, Cr³⁺, Fe³⁺ and Co³⁺ and all form low spin octahedral complexes. The correct decreasing order of unpaired electrons in their respective d-orbitals of the complexes is

[Ni(PPh₃)₂Cl₂] is a paramagnetic complex. Identify the INCORRECT statements about this complex. A. The complex exhibits geometrical isomerism. B. The complex is white in colour. C. The calculated spin-only magnetic moment of the complex is 2.84 BM. D. The calculated CFSE (Crystal Field Stabilization Energy) of Ni in this complex is -0.8 Δ_o. E. The geometrical arrangement of ligands in this complex is similar to that in Ni(CO)₄. Choose the correct answer from the options given below.

The crystal field splitting energy of [Co(oxalate)₃]^3- complex is 'n' times that of the [Cr(oxalate)₃]^3- complex. Here 'n' is ____. (Assume Δ_o >> P)

The statements that are incorrect about the nickel(II) complex of dimethylglyoxime are : A. It is red in colour. B. It has a high solubility in water at pH = 9. C. The Ni ion has two unpaired d-electrons. D. The N - Ni - N bond angle is almost close to 90 degrees. E. The complex contains four five-membered metallacycles (metal containing rings). Choose the correct answer from the options given below:

Total number of unpaired electrons present in the central metal atoms/ions of [Ni(CO)₄], [NiCl₄]^2-, [PtCl₂(NH₃)₂], [Ni(CN)₄]^2- and [Pt(CN)₄]^2- is ____.

Identify the CORRECT set of details from the following: A. [Co(NH₃)₆]³⁺: Inner orbital complex; d²sp³ hybridized. B. [MnCl₆]^3-: Outer orbital complex; sp³d2 hybridized. C. [CoF₆]^3-: Outer orbital complex; d²sp³ hybridized. D. [FeF₆]^3-: Outer orbital complex; sp³d2 hybridized. E. [Ni(CN)₄]^2-: Inner orbital complex; sp³ hybridized. Choose the correct answer from the options given below:

Given below are two statements: Statement I: The number of paramagnetic species among [CoF₆]^3-, [TiF₆]^3-, V₂O₅ and [Fe(CN)₆]^3- is 3. Statement II: K₄[Fe(CN)₆] < K₃[Fe(CN)₆] < [Fe(H₂O)₆]SO₄.H₂O < [Fe(H₂O)₆]Cl₃ is the correct order in terms of number of unpaired electron(s) present in the complexes. In the light of the above statements, choose the correct answer from the options given below

Consider a mixture 'X' which is made by dissolving 0.4 mol of [Co(NH₃)₅SO₄]Br and 0.4 mol of [Co(NH₃)₅Br]SO₄ in water to make 4 L of solution. When 2 L of mixture 'X' is allowed to react with excess of AgNO₃, it forms precipitate 'Y'. The rest 2 L of mixture 'X' reacts with excess BaCl₂ to form precipitate 'Z'. Which of the following statements is CORRECT?

Given below are two statements: Statement I: Hybridisation, shape and spin only magnetic moment of K₃[Co(CO₃)₃] is sp³d2, octahedral and 4.9 BM respectively. Statement II: Geometry, hybridisation and spin only magnetic moment values (BM) of the ions [Ni(CN)₄]^2-, [MnBr₄]^2- and [CoF₆]^3- respectively are square planar, tetrahedral, octahedral; dsp², sp³, sp³d2 and 0, 5.9, 4.9. In the light of the above statements, choose the correct answer from the options given below

The wavelength of light absorbed for the following complexes are in the order. Figure: (I) [Co(NH₃)₆]³⁺, (II) [Co(H₂O)₆]³⁺, (III) [Co(CN)₆]^3-, (IV) [Co(NH₃)₅(H₂O)]³⁺, (V) [CoF₆]^3-. Stem not solvable without the figure.

X is the number of geometrical isomers exhibited by [Pt(NH₃)(H₂O)BrCl]. Y is the number of optically inactive isomer(s) exhibited by [CrCl₂(ox)₂]^3-. Z is the number of geometrical isomers exhibited by [Co(NH₃)₃(NO₂)₃]. The value of X + Y + Z is ____.

The correct statement among the following is:

The number of isoelectronic species among Sc³⁺, Cr²⁺, Mn³⁺, Co³⁺ and Fe³⁺ is 'n'. If 'n' moles of AgCl is formed during the reaction of complex with formula CoCl₃(en)₂NH₃ with excess of AgNO₃ solution, then the number of electrons present in the t_2g orbital of the complex is ____.

The correct increasing order of spin-only magnetic moment values of the complex ions [MnBr₄]^2- (A), [Cu(H₂O)₆]²⁺ (B), [Ni(CN)₄]^2- (C) and [Ni(H₂O)₆]²⁺ (D) is :

5.33 g of CrCl₃.6H₂O, which is a 1 : 3 electrolyte, is dissolved in water and is passed through a cation exchanger. The chloride ions in the eluted solution, on treatment with AgNO₃ results in 8.61 g of AgCl. The ratio of moles of complex reacted and moles of AgCl formed is ____ × 10^-2. (Nearest integer) [Molar mass in g mol-1: Cr : 52, Ag : 108, Cl : 35.5, H : 1, O : 16]

Match List I with List II. Figure: Chromium(III) Complexes (en = ethylene diamine): A. [Cr(CN)₆]^3-, B. [CrF₆]^3-, C. [Cr(H₂O)₆]³⁺, D. [Cr(en)₃]³⁺; Δ_o (cm^-1): I. 15,060, II. 17,400, III. 22,300, IV. 26,600. Stem not solvable without the figure.

Which of the following complexes will show coordination isomerism? A. [Ag(NH₃)₂][Ag(CN)₂], B. [Co(NH₃)₆][Cr(CN)₆], C. [Co(NH₃)₆][Co(CN)₆], D. [Fe(NH₃)₆][Co(CN)₆], E. [Co(NH₃)₆][Fe(CN)₆]. Choose the correct answer from the options given below:

Given below are two statements: Statement I: Among Zn, Mn, Sc and Cu, the energy required to remove the third valence electron is highest for Zn and lowest for Sc. Statement II: The correct order of the following complexes in terms of CFSE is [Co(H₂O)₆]²⁺ < [Co(H₂O)₆]³⁺ < [Co(en)₃]³⁺. In the light of the above statements, choose the correct answer from the options given below:

Match LIST-I with LIST-II. Figure: List-I (Complex ion): A. [Cr(H₂O)₆]²⁺, B. [Co(H₂O)₆]²⁺, C. [Cu(H₂O)₆]²⁺, D. [Mn(H₂O)₆]³⁺; List-II (Calculated spin only magnetic moment (BM)): I. 3.87, II. 5.92, III. 4.90, IV. 1.73. Stem not solvable without the figure.

Consider the metal complexes [Ni(en)₃]²⁺ (A), [NiCl₄]^2- (B) and [Ni(NH₃)₆]²⁺ (C). Choose the CORRECT option by considering the number of unpaired electrons present in (A), (B) and (C) respectively and the order of frequency of absorption.

Given below are two statements: Statement I: Each electron in e_g orbitals destabilizes the orbitals by +0.6 Δ_o and each electron in the t_2g orbitals stabilizes the orbitals by -0.4 Δ_o in an octahedral field on the basis of crystal field theory. Statement II: All the d-orbitals of the transition metals have the same energy in their free atomic state but when a complex is formed the ligands destroy the degeneracy of these orbitals on the basis of crystal field theory. In the light of the above statements, choose the correct answer from the options given below

The correct statements about metal carbonyls are: A. The metal-carbon bonds in metal carbonyls possess both sigma and pi character. B. Due to synergic bonding interactions between metal and CO ligand, the metal-carbon bond becomes weak. C. The metal-carbon sigma bond is formed by the donation of lone pair of electrons on the carbonyl carbon into a vacant orbital of metal. D. The metal-carbon pi bond is formed by the donation of electrons from filled d-orbital of metal into vacant pi* orbital of CO. Choose the correct answer from the options given below:

The total number of unpaired electrons present in the d³, d⁴ (low spin), d⁵ (high spin), d⁶ (high spin) and d⁷ (low spin) octahedral complex systems is ____.

Identify the correct statements from the following: A. [Fe(C₂O₄)₃]^3- is the most stable complex among [Fe(OH)₆]^3-, [Fe(C₂O₄)₃]^3- and [Fe(SCN)₆]^3-. B. The stability of [Cu(NH₃)₄]²⁺ is greater than that of [Cu(en)₂]²⁺. C. The hybridization of Fe in K₄[Fe(CN)₆] is d²sp³. D. [Fe(NO₂)₃Cl₃]^3- exhibits linkage isomerism. E. NO₂^- and SCN^- ligands are NOT ambidentate ligands. Choose the correct answer from the options given below:

Given below are two statements: Statement I: Presence of large number of unpaired electrons in transition metal atoms results in higher enthalpies of their atomisation. Statement II: d_xy = d_xz = d_yz < d_x²−y² = d_z² and d_x²−y² = d_z² < d_xy = d_xz = d_yz are the d-orbital splittings in [Fe(H₂O)₆]³⁺ and [NiCl₄]^2- complex ions respectively. In the light of the above statements, choose the correct answer from the options given below

Which of the following are true about the energy of the given d-orbitals of a tetrahedral complex? A. d_xy = d_xz > d_x²−y², B. d_xy = d_yz > d_z², C. d_x²−y² > d_z² > d_xz, D. d_x²−y² = d_z² < d_xz. Choose the correct answer from the given below:

Match LIST-I with LIST-II. Figure: List-I (Electronic configuration of tetrahedral metal ion): A. d², B. d⁴, C. d⁶, D. d⁸; List-II (Crystal Field Stabilization Energy (Δ_t)): I. -0.6, II. -0.8, III. -1.2, IV. -0.4. Stem not solvable without the figure.

An excess of AgNO₃ is added to 100 mL of a 0.05 M solution of tetraaquadichloridochromium (III) chloride. The number of moles of AgCl precipitated will be ____ × 10^-3. (Nearest integer)

Number of paramagnetic complexes among the following is ____. Figure: [MnBr₄]^2-, [NiCl₄]^2-, [Ni(CN)₄]^2-, [Ni(CO)₄], [CoF₆]^3-, [Fe(CN)₆]^3-, [Mn(CN)₆]^3-, [Ti(CN)₆]^3-, [Cu(H₂O)₆]²⁺, [Co(C₂O₄)₃]^3-. Stem not solvable without the figure (list only in figure).