22 - Which of the following complex ions is (are)... Ch. Answer/Explanation. Using the following abbreviated spectrochemical series, determine which complex ion is most likely to absorb light in the red region of the visible spectrum. This energy lies in visible region and i.e., why electronic transition are responsible for colour. small splitting Cl- < H2O < NH3 < CN- large splitting For the same metal, the same ligands and metal-ligand distances, it can be shown that del.tetra = (4/9) del.oct. 22 - For a tetrahedral complex of a metal in the first... Ch. none of them. Solution: The geometry tetrahedral with 5 unpaired electrons giving a magnetic moment of 5.92 BM as the four ligands are attached to Mn2+. Which of the following is the high spin complex? What is the oxidation number of Chromium in [Cr(NH3)4Cl2]Cl +3. View solution Geometry, hybridisation and magnetic moment of the ions [ N i ( C N ) 4 ] 2 − , [ M n B r 4 ] 2 − and [ F e F 6 ] 4 − respectively are: 28. tetrahedral. Value of C F S E depends upon nature of ligand and a spectrochemical series has been made experimentally, for tetrahedral complexes, is about 4 / 9 times to 0 (C F S E for octahedral complex). 22 - Which of the following complex ions containing the... Ch. 22 - A transition metal coordination compound absorbs... Ch. Which one of the following species is a … Based on crystal field theory explain why Co(III) forms a paramagnetic octahedral complex with weak field ligands whereas it forms a diamagnetic octahedral complex with strong field ligands. In tetrahedral complexes none of the ligand is directly facing any orbital so the splitting is found to be small in comparison to octahedral complexes. For a tetrahedral d 4 complex, 3 absorptions are expected in its electronic spectrum The absorption in the electronic spectrum of [Ti(OH 2 ) 6 ] 3+ is assigned to the E g ← T 2 g transition [Cr(CN) 6 ] … Absorptions in the electronic spectrum of [Mo(OH2)6]2+are strong. Absorptions in the electronic spectrum of [Mo(OH2)6]2+are weak. View solution Predict the number of unpaired electrons in a tetrahedral d 6 ion and in square planar d 7 ion. What are the respoective central-metal oxidation state, coordination number, and overall charge on the complex ion in Na2[Cr(NH3)2(NCS)4] +2; 6; -2. The first three complexes can have cis and trans isomers. Answer: Explaination: (b) and (c) are correct statement ∆ t = $$\frac{4}{9}$$ ∆ 0 The absorption in the electronic spectrum of [HfOH2)6]3+ is assigned to the Eg ← T2g transition. (c) tetrahedral complexes have smaller crystal field splitting than octahedral complexes. Which of the following complexes have a maximum number of unpaired eletrons? Ch. (d) tetrahedral complexes have larger crystal field splitting than octahedral complex. For a tetrahedral d4 complex, 3 absorptions are expected in its electronic spectrum. 22 - How many geometric isomers are possible for the... Ch. This is based on the ratio of compounds bonded to the metal ion. As there is at least two of both in the first three complexes, both cis and trans isomers can be formed. Identify the following terms in the complex [K 4 Fe (CN) 6] (i) Cation (ii) Anion (iii) ligands (iv) central metal ion (v) Oxidation state of metal (vi) IUPAC name Answer: Question 6. This may attributes to the following two reasons. Many geometric isomers are possible for the... Ch visible region and i.e., why electronic transition are for! Metal coordination compound absorbs... Ch absorptions in the first three complexes, both cis and trans isomers can shown! Tetrahedral with 5 unpaired electrons giving a magnetic moment of 5.92 BM as the four ligands are to. Trans isomers can be formed H2O < NH3 < CN- large splitting tetrahedral ( 4/9 ) del.oct the high complex. Metal, the same ligands and metal-ligand distances, it can be formed electronic.... 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