How would you account for the following: (i) Metal-metal bonding is more extensive in the 4d and 5d series of transition elements than the 3d series. (ii) Mn(III) undergoes disproportionation reaction easily. (iii) Co (II) is easily oxidised in the presence of strong ligands

Q: Briefly speculate on why many cobalt (III) compounds are prepared by oxidizing CO(II) salts rather…

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Q: Illustrate the concepts of Transition-Metal Complexes?

A: Transition metal complexes are also named as coordination compounds. These complexes involve ions of…

Q: By using the Tanabe-Sugano diagram, explain why there are only two absorption bands in the UV-Vis…

A: Tanabe-Sugano diagrams are used to explain the electronic spectra of the different compounds.

Q: Ligand A, B, and C form complexes with a metal cation resulting to  violet, indigo, and blue aqueous…

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Q: (d) [Cr(OH)2]¿** ions are pale blue-green but chromate (Cr,0,) ion is an intense yellow in colour.…

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Q: How many different formulas are there for octahedral complexes with a metal M and four ligands A, B,…

A: The complexes in which the central metal atom is surrounded by six ligands are called an octahedral…

Q: By plotting the structure of the dinitro tetraammin cobalt (III) chloride complex compound, specify…

A: Any compound that is written within square brackets is called a coordination compound. The ions…

Q: Hexaamminechromium(III) ion, [Cr(NH3)6]°* is a metal complex containing six ammonia ligands i. Using…

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Q: (d) [Cr(OH)2]¿* ions are pale blue-green but chromate (Cr,O,) ion is an intense yellow in colour.…

A: Ans: [Cr(H2O)6]3+ is pale green beacuse in this complex Cr has +3 oxidation state with d3…

Q: (d) [Cr(OH);]¿* ions are pale blue-green but chromate (Cr,O,²) ion is an intense yellow in colour.…

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Q: How would you account for the following? (i) Transition metals exhibit variable oxidation states.…

A: The elements present in the d-block of the periodic table are known as transition metals as they…

Q: 14. In the determination of Kf for the iron thiocyanate complex, what is the color of the complex?…

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Q: A complex, ML62+, is violet. The same metal forms a complex with another ligand, Q, that creates a…

A: Given: The complex given is  This complex is violet. The metal gets attached to the weak field…

Q: 4. Magnetite, Fe304, is one of the principal mineral sources of iron, along with Haematite and…

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Q: Give reasons for the following observations: (i) Mn(II) ion shows maximum paramagnetic character…

A: Elements present in d-block are referred as transition series.

Q: State reasons for the following observations: (i) The enthalpies of atomisation of transition…

A: Transition elements have high effective nuclear charge and a large number of valence electrons.…

Q: 3+ (d) [Cr(OH)2]6* ions are pale blue-green but chromate (Cr,O,) ion is an intense yellow in colour.…

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Q: What is the relationship between observed colour of the complex and the wavelength of light absorbed…

A: When light falls on a complex, certain part will get absorbed. If the crystal field splitting energy…

Q: ron(III) chloride reacts with triphenylphosphine,PPh3, to form the complex [FeCl3(PPh3)2]. However,…

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Q: Explain each of the following observations: (i) With the same d-orbital configuration (d4), Cr2+ is…

A: (i) Cr2+ has d4 configuration. Upon losing an e- (reducing agent), it forms Cr3+ which has d3…

Q: Write the coordination number and oxidation state of Platinum in the complex [ Pt ( en ) , C1₂ ]

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Q: Estimate the wavelength of maximum absorption for the octahedral ion hexacyanoferrate(III) from the…

A: Given that the light which is emitted by the solution is red, hence the solution absorbs its…

Q: (a) Write the electronic configuration of Ce3+ ion, and calculate the magnetic moment on the basis…

A: Since you have posted multiple questions, we will answer the first question. Kindly repost the…

Q: Explain giving reasons :(i) Transition metals and their compounds generally exhibit a paramagnetic…

A: Transition elements are the elements having partially filled d-subshell and the elements of this…

Q: What structural feature is characteristic of a chelate?

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Q: In octahedral complexes, for which d electron counts is it possible to have highspinand low-spin…

A: Octahedral complexes are the complexes having Coordination no.6. this coordination no.6 implies no.…

Q: Why a diamagnetic metal complex once heated it posses a magnetic moment.

A: The diamagnetic complex is the one that tends to have paired electrons in the electronic…

Q: Explain the hybrid type and geometric structure of the K3 [Cr (C204) 3] .3H2O complex with VBT.

A: oxidation number of Cr is +3  in this compound .

Q: (a) What is the range in electronegativity across the first (3d)transition series? (b) What is the…

A: (a) Transition elements exhibit a relatively small change in electronegativity consistent with the…

Q: 1) Why are lanthanide  complexes always weak field in nature , second and third d-transition metal…

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: Giving one example in each of the following cases, discuss briefly the role of coordination…

A: Introduction- Coordination compounds- These are the compounds which contain a complex part formed…

Q: Would it be better to use octahedral complexes of Cr3+ or Co3+ to determine whether a given ligand…

A: In order to decide the strength of ligands, the following factors have to check; The electronic…

Q: Palladium(II) tends to form complexes with coordination number 4. A compound has the composition…

A: The chemical compounds consisting of neutral molecules or anions attached to the central metal atom…

Q: Suggest a reason why copper(II) compounds are often colored but copper(I) compounds are colorless.

A: Given :  why copper(II) compounds are often colored but copper(I) compounds are colorless ?  To…

Q: What is the oxidation state of the metal centre in the [Cr(CO3)3(C6H6)] complex?

A: Explanation-       Cr(CO3)3(C6H6)] complex is the name (η 6 -benzene ) tricarbonyl chromium(0).…

Q: Explain the following observations :(i) Copper atom has completely filled d orbitals (3d10) in its…

A: The elements in which the last electron is filled in d sub shell are known as transition elements.

Q: Describe how magnetism in lanthanides series arises

A: Instead making this explanation complex let me explain you in very simple language. As we know that…

Q: (a) Which metal in the first transition series (3d series) exhibits +1 oxidation state most…

A: Which metal in the first transition series (3d series) exhibits a +1 oxidation state most…

Q: How would you account for the following?(i) Many of the transition elements are known to form…

A: The explanation of the subparts is given in the following steps.

Q: Explain the following observations: (i) The enthalpies of atomisation of transition metals are quite…

A: The given observations have to be explained,

Q: Describe the periodic trends in radii and oxidation states of the transition-metal ions, including…

A: Lanthanide contraction occurs due to an increase in the effective nuclear charge with an increasing…