The most important oxides of iron are magnetite, Fe3O4, and hematite, Fe2O3. One of these iron oxides is ferrimagnetic, and the other is antiferromagnetic. Which iron oxide is more likely to be ferrimagnetic? Explain.

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: Explain reaction chemistry of CO with transition metals based on its Molecular orbital diagram?

A: Solution: Simply for any ligand to bind with transition metal required lone pair.  Let us know the…

Q: Draw the molecular orbital diagram of the -complex ion [Fe(H2O)6]2+, also arrange the electronic…

A: [Fe(H2O)6]2+ consists of 6 H2O ligands and an oxidation state of +2 which means Fe consists of 6…

Q: Which of the following statements is false? * 2nd and 3rd row d metals are generally larger in size…

A: Half filled and fully filled configuration are more stable than normal.

Q: Which of the following statements is true about hydride ions or compounds?   Among second-row…

A: Answer

Q: The red color of ruby is due to the presence of Cr(III) ions at octahedral sites in the close-packed…

A: The atomic number of Cr is 24 The electronic configuration of Cr is [Ar]3d54s1

Q: For each of the following ions, draw diagrams like thosein Figure 8.18 to show orbital occupancies…

A: As you have posted multiple parts of the question, hence we are solving only first 3 parts of the…

Q: How the ns2np5 configuration accounts for halogen reactivity with metals

A: The reactivity of halogens with metal has to be explained.

Q: Fe3O4 is ferrimagnetic at room temperature but becomes paramagnetic at 850 K. Why?

A: To find: Reason for Fe3O4 is ferrimagnetic at room temperature but becomes paramagnetic at 850 K

Q: Explain the following observations: (i) Many of the transition elements are known to form…

A: Interpretation: Given observation are to be explained.

Q: (a) Deduce the number of 3d electrons in the following ions Fe3+ , Cu2+. (b) Why do transition…

A: Since you have asked multiple questions, we are solving first questions for you. For remaining…

Q: Chemistry Briefly define, describe or illustrate the following concepts: a) Crystal field theory b)…

A: crystal field theory, crystal field stabilization energy, chelating agent

Q: 9, What is the coordination O 3 O 5 O 4 O 2

A: Applying concept of co-ordination number.

Q: Which of the following elements is most likely to form an oxide with the formula MO3: Zr, Nb, or Mo?

A:

Q: The lanthanide contraction explains which of the following periodic trends? The atomic ratio of…

A: In rare earth elements, the size of atoms and ions gradually decreases with increasing atomic number…

Q: Why dp transition elements show variable oxidation states? In 3d series (Sc to Zn), which element…

A: Outer electronic configuration and Oxidation states  Sc  3d1 4s2                                + 2,…

Q: Which metal center does not obey the 18-electron rule? a. Fe in Fe(n5-C5H4COME)2 b. Co in Co2(CO)8…

A: 18-electron rule: It is also known as EAN(Effective atomic number rule). This rule is generally…

Q: The colors in the copper-containing minerals malachite,which is green and has an empirical formula…

A: (a) The electron configuration of the copper ion in each mineral has to be given (b) The compound…

Q: Consider the [V"(H20)6]²* ion. (i) Draw the d electron configuration for this ion on an orbital…

A: 1. The atomic number of V = 23. So, the electronic configuration = 3d34s2. 2. The metal ion, V2+ is…

Q: What structural feature is characteristic of a chelate?

A:

Q: Magnitite ( Fe3O4) is a naturally occurring ferrimagnetic  material  with an inverse spinel…

A: Compounds with normal spinel structure are ZnFe2O4, MgAl2O4, CoAl2O4 where A atoms occupy the…

Q: Silicon and germanium are both semiconducting elementsfrom Group 4A(14) that can be doped to improve…

A: Semiconductors are the compounds that allow the passage of heat and electricity through them.…

Q: Write the reactions involved in the following processes: (i) Leaching of bauxite ore to prepare pure…

A: Given processes, (i) Leaching of bauxite ore to prepare pure alumina. (ii) Refining of zirconium by…

Q: The most important oxides of iron are magnetite, Fe3O4,and hematite, Fe2O3. (a) What are the…

A: Oxidation state is referred as the  total no. of electrons lost or gained by the atom to form a…

Q: Why do transition elements show variable oxidation states? How is the variability in oxidation…

A: The transition elements have the incompletely filled d-orbitals and furnish the cation by the…

Q: a) : Draw Iron Iron-Carbide diagram and explain its each phase reactions. (b) : Define the following…

A: The carbon in iron is an interstatial impurity. The alloy may form a face centre cubic (FCC) lattice…

Q: The most important oxides of iron magnetite, Fe3O4, and hematite, Fe2O3. What are the oxidation…

A: Oxidation number is the total number of electrons an atom loses or gains in order to form bond with…

Q: (üi) 1) H2SO4, 140 °C →? Br 2) NaOH MgBr (iüi) cat. Ni/ligands →?

A:

Q: Consider the given Ellingham diagram. At 1000 °C, which among Mg, Al, and Zn can be extracted from…

A: Given:  Ellingham diagrams are plots of standard free energy change versus temperature for the…

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: mong the following are the metal centers in the comple + and Fe²+ + and Fe²+ + and Fe³+ + and Fe³+

A: In the coordination compound, first complex cation and second is complex anion.

Q: Verify the structures of paramagnetic [Fe(H2O)6]²* and diamagnetic [Ni(CN)4]² by using Crystal Field…

A: [Fe(H2O)6]2+ = In the given complex, the oxidation state of Fe is +2. Hence, the electronic…

Q: rigid, crystal lattice? Calculate the recoil free of 57 Fe atom. energy a (mc2 = 5 x 1010 eV, E, =…

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: In large atoms, the lanthanide contraction is characterized by stabilization of the s and p orbitals…

A: Large atoms like Tl, Pb, Bi, Hf, Ta etc. Lanthanide contraction is observed.  These contains filled…

Q: Octahedral [Ni(NH₃)₆]²⁺ is paramagnetic, whereas planar[Pt(NH₃)₄]²⁺ is diamagnetic, even though…

A: Paramagnetic substances are those having unpaired electrons whereas diamagnetic substances are those…

Q: What is the process of making chlorine from the electrolysis of sodium chloride called? chlor-alkali…

A: (1) When sodium chloride is electrolysed , then sodium chloride decomposed with water to give sodium…

Q: Relative to the octahedral crystal field, in the square planar crystal field the d-orbitals xy, yz,…

A: Crystal field splitting is done where the orbitals are unstable. To make them stable splitting…

Q: Chromium(III), like cobalt(III), has a coordination numberof 6 in many of its complex ions.…

A: An aqueous solution is electrically conductive if there are free ions present in solution. The…

Q: Classify the metal centers in the following compounds in terms of their acidity, from hardest to…

A: Acids are defined as the species which can accept lone pairs from an electron rich species. The…

Q: What is the coordination number of the central ion? [Cr(H2O)6]+3 ? a. 3 O b. 6 с. 1 d. 2

A: Coordination number is the number of the ligands attached  to the central metal atom or ion . for…

Q: FeF6]3− is almost colourless whereas [CoF6]3− is coloured (and has only 1 band in the visible region…

A:

Q: explanations

A: Alloys are made up of two or more metals. The given alloy is made up of solid Al and Cu.