Q: The coordination compound [Pt(NH₃)₂(SCN)₂] displays two types of isomerism. Name the types and give…
A: This compound exhibits geometric (cis-trans) and linkage isomerism. The SCN-ligand can bond to the…
Q: Assign a systematic name to the following coordination compounds: (a) [Zn(H2O);OH]Br (b) Na[CuFal
A: In coordination compounds, after the naming of ligands, naming of central metal atom is to be done.…
Q: Illustrate the concepts of Transition-Metal Complexes?
A: Transition metal complexes are also named as coordination compounds. These complexes involve ions of…
Q: (d) [Cr(OH)2]¿** ions are pale blue-green but chromate (Cr,0,) ion is an intense yellow in colour.…
A:
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.…
A:
Q: The complexes [V(H2O)6]3+ and [VF6]3- are both known. What gives rise to the colors of these…
A: The striking colors exhibited by the complexes are caused due to excitation of an electron from…
Q: Sketch the structure of all possible isomers of a coordination compound of the type (MAA)3 as in the…
A: Isomerism :- The phenomenon of existence of compounds with same molecular formula but different…
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: For each of the following molecules or polyatomic ions, draw the Lewis structure and indicate if it…
A: Lewis structures are the representation of the chemical compound, which shows the sharing of…
Q: What happens when transition metals are oxidized?
A: What happens when transition metals are oxidized?
Q: What is the coordination number of the central metal in [Cr(acac)3] ? The acac ligand can be…
A: Coordination number of the central metal which is Chromium in [Cr(acac)3] is 6.
Q: Mention and draw the types of structural isomerism present in metal complexes and indicate to…
A: Answers are explained below.
Q: <p>Explain the differences between weak-field and strong-fieldmetal complexes.
A: The crystal field splitting energy is found to be more in the presence of strong field ligand…
Q: Draw the crystal-field energy-level diagrams and showthe placement of d electrons for each of the…
A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…
Q: Differentiate between monodentate ligands, bidentate ligands,and polydentate ligands?
A: Difference between monodentate ligands, bidentate ligands,and polydentate ligands has to be given,
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: 3+ (d) [Cr(OH)2]6* ions are pale blue-green but chromate (Cr,O,) ion is an intense yellow in colour.…
A:
Q: 4. Draw the Lewis structure for the SCN' ligand and explain the two different ways that it can…
A:
Q: Compare the ligand field strengths of CO and Cl, in terms of the types of bonds in which they can be…
A: CO is Sigma donor and pi acceptor ligand while Cl is only Sigma donor ligand .thus there type of…
Q: Explain why [FeF6]³- is colorless whereas [COF6]³- is colored but exhibits only a single band in the…
A: The ligands which produces greater splitting in d orbitals are known as strong field ligands. The…
Q: [Co(en)3][Cr(ox)3] and [Cr(en)3][Co(ox)3] are examples of_ а. ionization isomers b. linkage isomers…
A:
Q: 4. Draw the Lewis structure for the SCN: ligand and explain the two different ways that it can…
A: Introduction : Bridging ligand can be defined as a ligand that connects two or more atoms usually…
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: How many unpaired electrons are there in the low-spin state of Co2+ in an tetrahedral field?
A: In any "coordination complex" electrons get filled depending upon ligand nature. If "strong ligand"…
Q: (a) Calculate the number of unpaired electrons in the following gaseous state ions: Mn2+, Cr3+, V3+…
A: Transition metals have partly filled d-orbitals. Transition metals constitute group 3 to group 12…
Q: nich is the crystal field energy level diagram for a square pyramidal ML5 complex that contains a…
A:
Q: Which atom is a common linkage site in polydentate ligands?
A: Polydendate ligands are those ligands which have more than 2 donar atoms .
Q: Using crystal field theory, prove [NiCl4]2¯ is a tetrahedral paramagnetic complex.
A: Crystal field theory ia an electrostatic model which considers the metal-ligand bond to be ionic…
Q: it is the coordination number of the central metal in [Cr(CO)6] ? Co ligand can be classified as:[ t…
A: Coordination chemistry is defined as branch of chemistry in which we study the bonding of metal with…
Q: Mention the types of structural isomerism present in metal complexes and indicate to which of them…
A: Coordination isomerism is a form structural isomerism in which the composition of coordination…
Q: In what directions do you expect the bond length andvibrational frequency of a free CO molecule to…
A: Interpretation - In what directions the bond length and vibrational frequency of a free CO molecule…
Q: Which oxide, Mn₂O₃ or Mn₂O₇, is more basic in water?Why?
A: An acidic oxide is considered as an oxide that reacts with water to deliver an acid. The basic…
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: (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: Zn+2 salts are white while Cu+2 salts are coloured. Why?
A: In case of transition metals, the color of salts is due to the excitation of an electron from d…
Q: Oxyhemoglobin, with an O2 bound to iron, is a low-spin Fe(II) complex; deoxyhemoglobin, without the…
A: Oxyhemoglobin and deoxyhemoglobin are derivatives of hemoglobin. Both are octahedral complexes. One…
Q: The magnetic moments are strikingly different for [Mn(H₂O)]²+ and [MnBr4]², explain using crystal…
A:
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: Under what conditions is the FeO42- ion thermodynamically stable in aqueous solution?
A:
Q: Is the interaction between an ammonia ligand and a metal cation a Lewis acid–baseinteraction? If so,…
A: The interaction between ammonia ligand and a metal cation is a Lewis acid-base interaction.
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…
Q: When cobalt(II) chloride is treated, under certain condition, with the bidentate ligand,…
A: Coordination number is defined as the number of ligands that are attached to a metal in a complex…
Q: Write the formula for each of the following compounds, being sure to use brackets to indicate the…
A: Given compounds, (a) tetraaquadibromomanganese(III) perchlorate (b) bis(bipyridyl)cadmium(II)…
Q: hydrated CuSO4 is blue in colour. why?
A: The molecule that contains water molecule is termed as hydrous.
Q: What are the coordination numbers of cobalt(III), plat-inum(II), and platinum(IV) in complexes?
A: The coordination no. or ligancy of the central metal atom in a complex is defined as the total no.…
Give reasons :
(i) Zn is not regarded as a
(ii) Cr2+ is a strong reducing agent.
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- Using data in Appendix 1, estimate the temperature at which Fe2O3 can be reduced to iron, using hydrogen gas as a reducing agent (assume H2O(g) is the other product).One of the steps for refining silver involves converting silver into dicyanoargenate(I) ions: 4Ag(s) + 8CN−(aq) + O2(g) + 2H2O(l) ⟶ 4[Ag(CN)2]−(aq) + 4OH−(aq)Explain why oxygen must be present to carry out the reaction. Why does the reaction not occur as: 4Ag(s) + 8CN−(aq) ⟶ 4[Ag(CN)2−(aq)?Given: You weigh out exactly 0.200 g of Fe(NH4)2(SO4)2·6H2O and dissolve it in the 100.00 mL volumetric flask. You then pipette 2.00 mL of this solution into the 50.00 mL volumetric flask to prepare the stock standard tris-bipyridyl-iron(II) solution. a. Calculate the molar concentration of iron(II) in this solution in the 50.00 mL volumetric flask. (The MW of Fe(NH4)2(SO4)2·6H2O is 392.14 g/mol) (answer a given the information above)
- Write the expression for the equilibrium constant Kc for the following equation. FeO(s) + CO(g) ↔ Fe(s) + CO2(g)Titanium (IV) exists in aqueous solution but not as the Ti4+(aq) ion. Suggest the identity of the species.(a) Why do transition elements show variable oxidation states? (i) Name the element showing maximum number of oxidation states among the first series of transition metals from Sc (Z = 21) to Zn (Z = 30). (ii) Name the element which shows only +3 oxidation state. (b) What is lanthanoid contraction? Name an important alloy which contains some of the lanthanoid metals.
- Explain how the diphosphate ion, [O3P−O−PO3]4−, can function as a water softener that prevents the precipitation of Fe2+ as an insoluble iron salt.Write the hybridization, shape and magnetic character of [Fe(CN)6]4-.1. A sample of iron ore weighing 0.6428 g is dissolved in acid The iron is reduced to Fe*2 and titrated with 36.30 mL of a 0.1052 N solution of K2Cr207. (a) Calculate the percentage of iron (Fe) in the sample. (b) Express the percentage as Fe,03 rather than Fe. Hint: The reaction of Fe2+ with Cr,0,2 involves one electron to oxidize it to Fe*.
- Assign a reason for each of the following observations:(i) The transition metals (with the exception of Zn, Cd and Hg) are hard and have high melting and boiling points.(ii) The ionization enthalpies (first and second) in the first series of the transition elements are found to vary irregularly.Basic solutions of Na4XeO6 are powerful oxidants. What mass of Mn(NO3)2•6H2O reacts with 125.0 mL of a 0.1717 M basic solution of Na4XeO6 that contains an excess of sodium hydroxide if the products include Xe and solution of sodium permanganate?Predict the products of each of the following reactions and then balance the chemical equations.(a) Fe is heated in an atmosphere of steam.(b) NaOH is added to a solution of Fe(NO3)3.(c) FeSO4 is added to an acidic solution of KMnO4.(d) Fe is added to a dilute solution of H2SO4.(e) A solution of Fe(NO3)2 and HNO3 is allowed to stand in air.(f) FeCO3 is added to a solution of HClO4.(g) Fe is heated in air.
