Coordination Chemistry
340 questions in this chapter, page 5 of 7.
Study loop for Coordination Chemistry
1. Practise the PYQsPrevious-year questions, with answers
Coordination – General
ABC26IN0396 · The Delta 0 value of [Ni(H2O)6]2+ is 8500 cm-1. The Delta 0 values for [NiCl6]4- and [Ni(NH3)6]2+ compared to [Ni(H2O)6]2+ are · 2005-2021 self-practice
ABC26IN0398 · A complex is composed of one chromium ion, three bromides and six water molecules. Upon addition of excess AgNO3, 1.0 g aqueous solution of… · 2005-2021 self-practice
ABC26IN0399 · The rate of the following redox reaction is slowest when X is [CoIII (NH3)5 X]3+/ 2++ [CrII (H2 O)6]2+ → [CoII (NH3)5 (H2 O)]2++ [CrIII (H2… · 2005-2021 self-practice
ABC26IN0401 · The maximum numbewr of microstates for d2 electronic configuration is ____ · 2005-2021
ABC26IN0402 · In the electronic absorption spectrum of an aqueous solution of [Ni (NH3)6]2+, a very weak band is observed between the bands due to the… · 2005-2021
ABC26IN0403 · The reaction of NiBr2 with two equivalents of PPh3 in CS2 at -78° C gives a red-colored diamagnetic complex. [NiBr2 (PPh3)2]. This… · 2005-2021
ABC26IN0404 · The rate of the substitution reaction of [Co(CN)5 Cl]3- with OH-to give [Co(CN)5(OH)]3- · 2005-2021
ABC26IN0405 · The yellow color of an aqueous solution of K2 CrO4 changes to red-orange upon the addition of a few drops of HCl. The red-orange complex… · 2005-2021 self-practice
ABC26IN0406 · The Delta 0 of [Cr (H2 O)6]3+, [CrF6]3- and [Cr(CN)6]3- follows the order: · 2005-2021
ABC26IN0407 · The spin-only magnetic moment of [Co (H2 O)6]2+ (rounded off to one decimal place) is ____ BM. · 2005-2021
ABC26IN0408 · The correct order of increasing intensity (molar absorptivity) of the UV-visible absorption bands for the ions [Ti (H2 O)6]3+, [Mn (H2… · 2005-2021
Crystal Field Theory
ABC26IN0075 · According To Crystal Field Theory, Ni2+ can two have unpaired electrons in [CSIR-JUNE 2011] · 2011
ABC26IN0985 · According To Crystal Field Theory, Ni2+ can two have unpaired electrons in · JUNE 2011
ABC26IN0092 · The total number of Cu-O bonds present in the crystalline copper(II) acetate monohydrate is: [CSIR-DEC 2012] · 2012
ABC26IN1013 · The total number of Cu-O bonds present in the crystalline copper(II) acetate monohydrate is: · DEC 2012
ABC26IN0096 · Silica gel contains [Co(Cl4)]2- as an indicator. When activated, silica gel becomes dark blue while upon absorption of moisture, its colour… · 2013
ABC26IN1025 · Silica gel contains [Co (Cl4)]2- as an indicator. When activated, silica gel becomes dark blue while upon absorption of moisture, its… · JUNE 2013
ABC26IN1065 · Using crystal field theory, identify from the following complex ions that shows same mu eff (spin only) values (A) [CoF6]3- (B) [IrCl6]3-… · DEC 2015
ABC26IN1152 · For trigonal bipyramidal coordination complex (ML5) the correct point group symmetry and the relative order of the energies of the 3d… · JUNE 2021
Electron Transfer Redox
ABC26IN0076 · The term symbol of a molecule with electronic configuration: (1 sigma g)2(1 sigma u)2(2 sigma g)2(2 sigma u)2(1 pi u)1(1 pi u)1 is… · 2011
ABC26IN0986 · The term symbol of a molecule with electronic configuration: (1 sigma g)2(1 sigma u)2(2 sigma g)2(2 sigma u)2(1 pi u)1(1 pi u)1 is: · JUNE 2011
ABC26IN0987 · Consider two redox pairs: (1) Cr(II)/Ru(III) (2) Cr(II)/Co(III) The rate of acceleration in going from a outer-sphere to a inner-sphere… · JUNE 2011
ABC26IN0086 · Observe the following electronic transition of a diatomic molecule. (A) 1 Sigma +g → 3 Sigma +g (B) 1 Sigma +u → 1 Sigma +g (C) 1 Delta u →… · 2011
ABC26IN0998 · Observe the following electronic transition of a diatomic molecule. (A) 1 Sigma g+ → 3 Sigma g+ (B) 1 Sigma u+ → 1 Sigma g+ (C) 1 Delta u →… · DEC 2011
ABC26IN0087 · The electronic spectrum of [CrF6]3- shows three bands at 14,900 cm-1, 22400 cm-1 and 34,800 cm-1. The value of Delta o in this case is… · 2011
ABC26IN0999 · The electronic spectrum of [CrF6]3- shows three bands at 14,900 cm-1, 22400 cm-1 and 34,800 cm-1. The value of Delta o in this case is: · DEC 2011
ABC26IN1002 · For the following outer sphere electron transfer reactions. [Co (NH3)6]2++ [Co* (NH3)6]3+ → [Co (NH3)6]3++ [Co* (NH3)6]2+ [Ru (NH3)6]2++… · DEC 2011
ABC26IN1006 · The nucleophilic attack on olefins under mild conditions: · JUNE 2012
ABC26IN1008 · The number of microstates for d5 electron configuration is: · JUNE 2012
ABC26IN1009 · The set of allowed electronic transitions among the following is: (A) 4 Sigma → 2 Pi (B) 3 Sigma → 3 Pi (C) 1 Delta → 1 Delta (D) 2 Pi → 2… · JUNE 2012 self-practice
ABC26IN1022 · The electronic transition responsible for the colour of the transition metal ions is · JUNE 2013
ABC26IN0098 · Three bands in the electronic spectrum of [Cr(NH3)6]3+ are due to the following transitions (A) 4A2g → 4T1g (B) 4A2g → 4T2g (C) 4A2g → 2Eg… · 2013
ABC26IN1029 · Three bands in the electronic spectrum of [Cr (NH3)6]3+ are due to the following transitions (A) 4A2g→4T1g (B) 4A2g→4T2g (C) 4A2g→2Eg… · JUNE 2013
ABC26IN0100 · An octahedral metal ion M+2 has magnetic moment of 4.0 B.M. The correct combination of metal ion and d-electron configuration is given by… · 2013
ABC26IN1031 · An octahedral metal ion M+2 has magnetic moment of 4.0 B.M. The correct combination of metal ion and d-electron configuration is given by · DEC 2013
ABC26IN1032 · For an electronic configuration of two non-equivalent pi electronics [ pi 1, pi 1] which of the Following terms is not possible? · DEC 2013
ABC26IN0102 · Compounds K2Ba[Cu(NO2)6] (A) and Cs2Ba[Cu(NO2)6] (B) exhibit tetragonal elongation and tetragonal compression, respectively. The unpaired… · 2013
ABC26IN1035 · Compounds K2 Ba [Cu (NO2)6] (A) and Cs2 Ba [Cu (NO2)6] (B) exhibit tetragonal elongation and tetragonal compression, respectively. The… · DEC 2013
ABC26IN1041 · In its electronic spectrum, [V (H2 O)6]3+ exihibits two absorption bands, one at 17,800 (v1) and the second at 25, 700 (v2) cm. The correct… · JUNE 2014
ABC26IN1044 · Consider the second order rate constants for the following outer-sphere electron transfer [Fe(H2O)6]3+ / [Fe(H2O)6]2+ 4.0 M-1 sec-1… · JUNE 2014
ABC26IN0107 · In transition metal phosphine (M-PR3) complexes, the back-bonding involves donation of electrons from [CSIR-JUNE 2015] · 2014
ABC26IN1057 · In transition metal phosphine (M-PR3) complexes, the back-bonding involves donation of electrons from · JUNE 2015
ABC26IN0109 · The lowest energy-state of an atom with electronic configuration ns1np1 has the term symbol [CSIR-JUNE 2015] · 2015 self-practice
ABC26IN1059 · The lowest energy-state of an atom with electronic configuration ns1np1 has the term symbol · JUNE 2015
ABC26IN0110 · Match the complexes given in column I with the electronic transitions (mainly responsible for their colours) listed in column II The… · 2015
ABC26IN1060 · Match the complexes given in column I with the electronic transitions (mainly responsible for their colours) listed in column II The… · JUNE 2015
ABC26IN0112 · The term symbol for the first excited state of Be with the electronic configuration 1s2 2s1 3s1 is. [CSIR-DEC 2015] · 2015
ABC26IN1063 · The term symbol for the first excited state of Be with the electronic configuration 1s22s13s1 is. · DEC 2015
ABC26IN1071 · Aqueous Cr2+ effects one electron reduction of [Co (NH3)5 Cl]2+ giving compound Y. Compound Y undergoes rapid hydrolysis. Y is, · DEC 2015