Concept explainers
(a)
Interpretation:
To determine the ligand and their charges in
Concept introduction:
Coordination compounds are those in which a transition metal atom is bonded to a ligand which can be neutral, cation or anion. The
A ligand is an atom or a group of atoms or an anion that has an unshared pair of electrons and thus it can act as a Lewis base. It can donate its pair of electrons to the metal atom to form a coordinate bond with the transition metal atom.
(b)
Interpretation:
To determine the oxidation state of Cadmium in
Concept introduction:
Coordination compounds are those in which a transition metal atom is bonded to a ligand which can be neutral, cation or anion. The transition metal element is enclosed within a bracket and a charge is present on the ion to balance the charge present on the ligands.
A ligand is an atom or a group of atoms or an anion that has an unshared pair of electrons and thus it can act as a Lewis base. It can donate its pair of electrons to the metal atom to form a coordinate bond with the transition metal atom.
(c)
Interpretation:
To determine formula of the magnesiumsalt of
Concept introduction:
Coordination compounds are those in which a transition metal atom is bonded to a ligand which can be neutral, cation or anion. The transition metal element is enclosed within a bracket and a charge is present on the ion to balance the charge present on the ligands.
A ligand is an atom or a group of atoms or an anion that has an unshared pair of electrons and thus it can act as a Lewis base. It can donate its pair of electrons to the metal atom to form a coordinate bond with the transition metal atom.
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Chemistry: Principles and Reactions
- Platinum(II) forms many complexes, among them those with the following ligands. Give the formula and charge of each complex. (a) two ammonia molecules and one oxalate ion (C2O42-) (b) two ammonia molecules, one thiocyanate ion (SCN-), and one bromide ion (c) one ethylenediamine molecule and two nitrite ionsarrow_forwardFour different octahedral chromium coordination compounds exist that all have the same oxidation state for chromium and have H2O and Cl as the ligands and counterions. When 1 mole of each of the four compounds is dissolved in water, how many moles of silver chloride will precipitate upon addition of excess AgNO3?arrow_forward(b) Consider the oxalate (ox) ligand and answer the following questions:(i) Draw the structure of the ox ligand.(ii) Identify all the donor atoms of the ligand.(iii) What is the denticity of the ligand?(iv) What is the charge of the ligand?(v) Draw the structure of a homoleptic octahedral complex with ox as the ligand.Clearly show the geometry at the metal centre.(vi) Identify the stereoisomer in the structure drawn.arrow_forward
- 4. Consider the following reaction: [ZnCl4]² +4 OH → [Zn(OH)4]² +4 CI If the reaction is spontaneous, then which of the following is true? (A) Chloride is a more labile ligand than hydroxide in zinc complexes (B) Hydroxide is a more labile ligand than chloride in zinc complexes (C) Chloride is a more inert ligand than hydroxide in zinc complexes (D) Hydroxide and chloride are equally labile in zinc complexesarrow_forwardDraw the geometrical isomers of complex [Pt(NH3)2Cl2]. (ii) On the basis of crystal field theory, write the electronic configuration for d4 ion if Δ0 < P. (ii) Write the hybridization and magnetic behaviour of the complex [Ni(CO)4].arrow_forwardThe photographs below (a) show what occurs when a solution of iron(III) nitrate istreated with a few drops of aqueous potassium thiocyanate. The nearly colorlessiron(III) ion is converted to a red [Fe(H2O)5SCN)2+ion. (This is a classic test for thepresence of iron(III) ions in solution.)[Fe(H2O)6]3+(aq) + SCN−(aq) ⇄ [Fe(H2O)5SCN]2+(aq) + H2O(ℓ)(a) As more KSCN is added to the solution, the color becomes even more red.Explain this observation.(b) Silver ions form a white precipitate with SCN−ions. What would you observeon adding a few drops of aqueous silver nitrate to a red solution of [Fe(H2O)5 Explain your observations?arrow_forward
- Draw orbital-energy splitting diagrams and use the spectro-chemical series to show the orbital occupancy for each of the fol-lowing (assuming that H₂O is a weak-field ligand):(a) [Cr(CN)₆]³⁻(b) [Rh(CO)₆]³⁺(c) [Co(OH)₆]⁴⁻arrow_forward(a) Which is more likely to be paramagnetic, Fe(NO,), or Fe(OH), ? O Fe(OH),“ O Fe(NO2 ),+ 4- (b) Why? OH ion is a strong-field ligand, while NO2 ion is a weak-field ligand. O NO2 ion is a strong-field ligand, while OH ion is in the middle of the series. O NO2 ion is a weak-field ligand while, OH ion is in the middle of the series.arrow_forward
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