Inorganic Chemistry & Spectroscopy Exam with 100% Correct Answers | Verified | Updated

Inorganic Chemistry & Spectroscopy Exam with 100% Correct Answers | Verified | Updated The ground state electron configuration of a vanadium atom is: A. [Ar] 4s2 4d2 B. [Ar] 4s2 4p4 C. [Ar] 4s2 3d3 D. [Ar] 4s2 3d4 E. [Ar] 4s1 3d5 - answerC. [Ar] 4s2 3d3 How many d electrons does the Mn2+ ion have? A. 1 B. 2 C. 3 D. 4 E. 5 - answerE. 5 Lewis acids are substances that act as - answerelectron pair acceptors Lewis bases are substances that act as - answerelectron pair donors Metal Complex - answera compound in which the central metal ion is attached to a group of molecules (ligands) Which of the following is a bidentate ligand? A. CN - B. NH3 C. CO D. H2NCH2CH2NH2 (ethylenediamine, en) E. EDTA - answerD. H2NCH2CH2NH2 (ethylenediamine, en) Which response gives the correct coordination number (C.N.) and oxidation number (ON) of the transition metal atom in [Co(NH3)2(H2O)2Cl2]+ ? A. C.N. = 2; O.N. = +3 B. C.N. = 3; O.N. = +1 C. C.N. = 4; O.N. = +2 D. C.N. = 6; O.N. = +1 E. C.N. = 6; O.N. = +3 - answerE. C.N. = 6; O.N. = +3 Which of the following ligands produces the strongest crystal field? A. Br B. Cl C. H2O D. NH3 E. en F. CO - answerF. CO The colours for Cu(I) and Ti(IV) complexes are generally ________ and ________ respectively? [Hint: what is the d electron configuration for Cu(I) and Ti(IV)] A. Blue and Violet B. Black and Black C. Colourless and Colourless D. Green and Blue E. Insufficient information to predict - answerC. Colourless and Colourless Which of the following complex ions would absorb light with the longest wavelength? A. [Co(H2O)6]2+ B. [Co(NH3)6]2+ C. [CoF6]4- D. [Co(CN)6]4- E. [Co(en)3]2+ - answerC. [CoF6]4- The electron configuration of a chromium atom is: A. [Ar] 4s2 4d2 B. [Ar]4s24p4 C. [Ar]4s23d3 D. [Ar] 4s2 3d4 E. [Ar]4s13d5 - answerE. [Ar]4s13d5 The electronic configuration of a Cr3+ ion is: A. [Ar] 3d5 B. [Ar] 4s1 4d2 C. [Ar] 3d3 D. [Ar] 4s1 3d5 E. [Ar] 4s2 3d3 - answerC. [Ar] 3d3 How many d electrons does the Mn2+ion have? A. 1 B. 2 C. 3 D. 4 E. 5 - answerE. 5 Which of the following square-planar complexes