1)Use the nature of the bonding in d-transition metal complexes with CO to explain why HCo(CO)4   and  HV(CO)6 are strong acids in water . 2)Why did the observed chemistry of thallium mislead Mendelev to place the group 13 element (Tl) in a group with Li ,Na, K ,Rb ,and Cs ?

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

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Q: Why are low spin tetrahedral complexes not formed?

A: The division of d-orbitals present in central metal ion in sets of two different energies occur in…

Q: Give the systematic name for the following coordination compound: [NiCl₄]²⁻

A: [NiCl₄]²⁻ The above coordination compound systematic name is, Tetrachloronickelate (II) ion   A…

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: Write the chemistry of the reaction of Cr (VI) with formic acid in the presence of PdNPs.

A: Cr(VI) is a major pollutant in a waste water. Formic acid converts Cr(VI) to Cr(III). Here Pd…

Q: a) Give an explaination on the stabilities of [V(CO)6J, [Ni(CO)4] and [Mn(CO)s] complexes. [Mn(CO)s]…

A: Introduction :  We have to tell stability of these complexes .

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: explain why heavier lanthanides form more stable complexes than lighter ones

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Q: What is a transition metal in the fourth period from the following list: N, Cu, Ag, Yb?

A: Transition metals are the elements that are placed in the d-block of the modern periodic table.…

Q: If trans-[Cr(en)2(NCS)2]SCN is heated, it forms gaseousethylenediamine and solid…

A: The reaction on heating of the coordination compound trans-[Cr(en)2(NCS)2]SCN leads to the formation…

Q: Is it possible for a complex of a metal in the transition series to have six unpaired electrons?…

A: Transition metals form stable ions due to its incompletely filled d-orbitals. The d-subshell in…

Q: Draw the structure of the complex, [Ni(NH3)6][BF4]2, including approximate bond angles (in °).…

A: The objective of the question is to draw the given complex and write the angle and geometry.

Q: Explain why many transition metal complexes are paramagnetic?

A: ANSWER IS DISCUSSED BELOW :

Q: What coordination isomer can be written for [Co(en)3][Cr(ox)3]?

A: Two coordination isomers are possible:- Answer [Co(en)3][Cr(ox)3] and [Cr(en)3][Co(ox)3] are the…

Q: coordination isomers

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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: the coordination compound Rb2[Cr(O)Cls] (one oxide ligand and five chloride ligands). a. Determine…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: Aqueous solutions of [Mn(H2O)6]2+ are faint pink, so much so that they appear to be colorless, which…

A: Introduction: The color of 3d transition metal ion in the solution is mainly because of two…

Q: why do some d-block elements form colored complexes with various ligands

A: in complexes of the transition metals the D orbitals do not all have the same energy. the pattern of…

Q: Compare the following complexes with respect to structural shapes of units, magnetic behaviour and…

A: a) Co(NH3)6+3 The atomic number of Co is 27 and its electronic configuration is 3d7 4s2. The…

Q: Draw the crystal field diagrams for [Fe(NO2)6]4− and [FeF6]3−. State whether each complex is high…

A: In coordination complexes, metal is present at the center of the complex and ligands surround it.…

Q: A coordination compound of ruthenium, [Ru(NH3)4Cl2]Cl, has shown some activity against leukemia in…

A: Consider a coordination compound, [A]B where [A] forms the complex ion and B is the counter ion. The…

Q: Give 5 examples of metal coordination complexes and enumerate their importance

A: A question based on coordination complexes that is to be accomplished.

Q: Dinitrogen is very unreactive, but it can form complexes with transition metals. Explain why and…

A: Nitrogen possess three covalent bonds holds the molecule together which makes Nitrogen gas nearly…

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

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Q: In platinum(IV) complexes, the octahedral crystal field splitting Do is relatively large. Is K2PtCl6…

A: Pt forms low spin complexes due to high energy gap between the t2g and eg orbitals.

Q: Why is CO a stronger ligand than Cl-?

A: The spectrochemical series is a list of ligands based on the strength of their interaction with…

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: Cr(CO)6 is stable while Cr(NH3)6 is not.

A: In [Cr (NH3)6]+3, unpaired electrons are present so paramagnetic. In [Co (NH3)6] +3, all electrons…

Q: How would you account for the following: (i) Metal-metal bonding is more extensive in the 4d and 5d…

A: Metal from the Greek term (métallon), "mine, quarry, metal") is a substance that, when properly…

Q: Give the systematic name of this coordination compound. K,[Fe(CN),l

A: As formula has 6 CN So, hexacyano Fe so, ferrate(III)

Q: Use your knowledge of electronic transitions in coordination compounds to justify why the compound…

A: If a sample absorbs all wavelengths of visible light, none reaches our eyes from that sample, and…

Q: Arrange the following complexes in terms of ligand strength: [Cr(OH)6]3–, [Cr(NH3)6]3+, and…

A: The ligand strength is determined by the value of ∆° ie splitting energy. Various ligands are…

Q: give an example of coordination compounds showing ionisation isomerism.

A: In ionization isomers ligand has exchanged places with an anion or neutral molecule that was…

Q: O Identify the type of isomerism present in the complexes, [RuBr(NH3)s]CI and [RUCI(NH3)s]Br,…

A: Since, Isomerism are those phenomenon in which molecular formula is same but arrangement is…

Q: (a) What is the lanthanide contraction? (b) How does it affectatomic size down a group of transition…

A: Lanthanoid contraction, in chemistry, is the steady decrease in the size of the atoms and ions of…

Q: Explain the bonding in coordination compounds in terms of Werner's nostulate

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Q: a) Why the [Mn(H,O),]²* complex gives pale pink color where as MnO, gives intense color in water,…

A: “Since you have asked multip- le question, we will solve the first question for you. If you want any…

Q: The ion [Fe(CN)6]3- has one unpaired electron, whereas[Fe(NCS)6]3- has five unpaired electrons. From…

A: The coordination complexes can be defined as the complex compounds which have coordinate linkage…

Q: The coordination complex [Cr(CO)6] forms colorless,diamagnetic crystals that melt at 90 °C. (a) What…

A: (a)

Q: Why are there both high-spin and low-spin octahedral com-plexes but only high-spin tetrahedral…

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Q: Write the formula for a complex formed between Ag+ and NH, with a coordination number of 2. formula:…

A: Here, we have to write the formula of a complex formed between Ag+ and NH3 with a coordination…

Q: why d³ and d⁸ high spin complexes are more stable than other configurations?

A: High spin complexes: According to crystal field theory, two types of complexes are formed. High spin…

Q: Write the Werner's formula of a coordination compound called Sodium diaquatetrachlorocobaltate(Il).

A: Werner's theory tells us that metal have two valencies. They are primary and secondary valency. The…

Q: For which member of the following pairs of complexes  would  Δo  be the larger and why: (a)…

A: Δo is the crystal field splitting energy i.e the difference between eg and t2g orbitals.  In…