.Which of the following would be most likely to be colorless? A.[Ni(H20%) . B[Ni
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.Which of the following would be most likely to be colorless? A.[Ni(H20%) . B[Ni(en )]2+ C. [Mn(CN)6]3 Two well-known complex ions containing Ni are [Ni(H2012, which is green, and [Ni(en)s]2, which is purple. Which one of these statements is true? The crystal field splitting energy (Ao) is greater for [Ni(en)s)]2* than for [Ni (H20)o]2-. B) [Ni(en);absorbs energy in the red region of the spectrum. C) Both complex ions are diamagnetic. D) [Ni(H2O)6]2+transmits light with wavelengths ofapproximately 650-700 nm. E) The green complex absorbs green light. The crystal field splitting energy, , A) is larger for tetrahedral complexes than for octahedral complexes. B) depends on the metal but not on the ligand. C) determines the color of a complex. D) is larger for ionic ligands like chloride than for molecular ligands like carbon monoxide, CO. E) determines the charge of a complex. Which of the following metal ions would be most likely to be involved in enzyme redox chemistry? A) B) C) D) Na* Ca2* Fe2+ Identify the reaction type. 2- Ci Ci A) Oxidative additionExplanation / Answer
1) answer is D the complex name is diaminedichlorido zinc (II) in general the zinc salts and their complexes are colorless due to completely filled d-orbitals as there are no unpaired electrons left.
2) Answer is A. since the ligand H2O is weak compared to en the CFSE value for en complex will be high than H2O complex.
3) answer is C. The crystal field splitting energy is higher for octahedral than tetrahedral complexes, it doesnt give tell about the charge on the complex, but it gives its magnetism. Also the CFSE value for CO is more than Cl. and gives the color of the complex.
4) Fe2+ is the most common metal ion which participates in enzyme redox reactions followed by zinc and manganese.
As per chegg rules we have to answer first four parts. Thank you
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