ABC26IN0078 · The complex [Mn(H2O)6]2+ has very light pink colour. The best reason for it is · 2011
ABC26IN0988 · The complex [Mn(H2O)6 ]2+ has very light pink colour. The best reason for it is · JUNE 2011
ABC26IN0992 · Which of the following compound show a charge-transfer band? · JUNE 2011
ABC26IN0105 · An aqueous solution of [Mn (H2 O )6 ]2+ complex is pale pink in colour. The probable reasons for it are arrayl (A) Presence of 6A1g ground… · 2014
ABC26IN1051 · An aqueous solution of [Mn (H2 O )6 ]2+ complex is pale pink in colour. The probable reasons for it are (A) Presence of 6A1g ground state… · DEC 2014
ABC26IN0114 · [MnO4 ]-is deep purple in colour whereas [ReO4 ]-is colourless. This is due to greater energy required for · 2015
ABC26IN1069 · [MnO4 ]-is deep purple in colour whereas [ReO4 ]-is colourless. This is due to greater energy required for · DEC 2015
ABC26IN1089 · For [Ce (NO3 )4 (OPPh3 )2 ] from the following A. Its aqueous solution yellow-orange in B. Coordination number of Ce is ten C. It shows… · DEC 2016
ABC26IN0131 · Br2 with propanone forms a charge transfer complex and I2 forms triiodide anion with I-. This implies that · 2017
ABC26IN1107 · Br2 with propanone forms a charge transfer complex and I2 forms triiodide anion with I-. This implies that · DEC 2017
ABC26IN1108 · Mismatch among the following is · DEC 2017
ABC26IN1137 · I2 is violet in the solid as well as in gas phase. However in acetone or ethanol, it turns brown. Choose the correct statement(s) for this… · JUNE 2019
ABC26IN1148 · For the ligand-to-metal charge-transfer (LMCT) transitions in the oxo-anions given below, the wavelength of the transitions are in the order · JUNE 2021
Coordination Chemistry – General
ABC26IN0984 · Ni (CN4 )2- and Ni (Cl4 )2- complex ions are : · JUNE 2011
ABC26IN0079 · The correct order of LMCT energies is: · 2011
ABC26IN0989 · The correct order of LMCT energies is: · JUNE 2011
ABC26IN0080 · For the complexes (A) [Ni(H2O)6]2+ (B) [Mn(H2O)6]2+ (C) [Cr(H2O)6]3+ (D) [Ti(H2O)6]3+ the ideal octahedral geometry will not be observed in · 2011
ABC26IN0990 · For the complexes (A) [Ni(H2O)6 ]2+ (B) [Mn(H2O)6 ]2+ (C) [Cr(H2O)6 ]3+ (D) [Ti(H2O)6 ]3+ the ideal octahedral geometry will not be… · JUNE 2011
ABC26IN0082 · Cis and trans complexes of the type [PtA2X2 ] are distinguished by · 2011
ABC26IN0993 · Cis and trans complexes of the type [PtA2 X2 ] are distinguished by · JUNE 2011
ABC26IN0083 · The number of possible isomers for [Ru(bpy)2 Cl2 ] is (bpy=2,2 . - bipyridine ) · 2011
ABC26IN0994 · The number of possible isomers for [Ru(bpy)2 Cl2 ] is ( bpy=2,2 '- bipyridine) d-cis-form · JUNE 2011
ABC26IN0085 · The complex that absorbs light of shortest wavelength is · 2011
ABC26IN0996 · The complex that absorbs light of shortest wavelength is · DEC 2011
ABC26IN0997 · Green coloured Ni(PPh2Et)2Br2, has a magnetic moment of 3.20 B.M. The geometry and the number of isomers possible for the complex… · DEC 2011
ABC26IN0089 · The coordination number and geometry of cerium in [Ce (NO3 )6 ]2- are respectively, · 2011
ABC26IN1003 · The coordination number and geometry of cerium in [Ce (NO3 )6 ]2- are respectively, · DEC 2011self-practice
ABC26IN1010 · In [Mo2 (S2 )6 ]2-, cluster the number of bridging S22- and coordination number of Mo respectively, are · DEC 2012
ABC26IN0090 · The light pink color of [Co (H2 O )6 ]2+ and the deep blue color of [CoCl4 ]2- are due to · 2012
ABC26IN1011 · The light pink color of [Co (H2 O )6 ]2+ and the deep blue color of [CoCl4 ]2- are due to · DEC 2012
ABC26IN0091 · The number of possible isomers of [Ru (PPh3 )2(acac)2 ]( acac = acetylacetonate ) is: · 2012
ABC26IN1012 · The number of possible isomers of [Ru (PPh3 )2(acac)2 ](acac= acetylacetonate ) is: · DEC 2012self-practice
ABC26IN1014 · The electric dipole allowed transition in a d2 atomic system is · DEC 2012
ABC26IN1015 · Coordination number of " C " in Be2 C3 whose structure is correlated with that of CaF2 is: · DEC 2012self-practice
ABC26IN0093 · In the solid state, the CuCl5 ion has two types of bonds. These are · 2012
ABC26IN1016 · In the solid state, the CuCl5 ion has two types of bonds. These are · DEC 2012
ABC26IN0094 · The correct spinel structure of Co3 O4 is: · 2012
ABC26IN1017 · The correct spinel structure of Co3 O4 is: · DEC 2012
ABC26IN1019 · One of the excited states of Ti has the electric configuration [Ar] 4 s2 3 d1 4 p1. The number of microstates with zero total spin (S) for… · DEC 2012
ABC26IN1020 · The rate of exchange of OH2 present in the coordination sphere by 18OH2 of, (i) [Cu (OH2 )6 ]2+ (ii) [Mn (OH2 )6 ]2+ (iii) [Fe (OH2 ) ]62+… · DEC 2012
ABC26IN1026 · Intense band at 15000\,cm-1 in the UV-visible spectrum of [Bu4N]2Re2Cl8 is due to the Transition · JUNE 2013
ABC26IN0097 · The species with highest magnetic moment (spin only value) is · 2013
ABC26IN1028 · The species with highest magnetic moment (spin only value) is · JUNE 2013
ABC26IN0099 · The of the following complexes arrayl (A) [Co (Cl4 ) ]2- \\ (B) [Co (Br4 ) ]2- \\ (C) [Co (NCS4 ) ]2- array follows the order · 2013
ABC26IN1030 · The of the following complexes (A) [Co(Cl4) ]2- (B) [Co(Br4) ]2- (C) [Co(NCS)4 ]2- Follows the order · JUNE 2013
ABC26IN1033 · Among the following, the correct combination of complex and its color is · DEC 2013
ABC26IN0101 · MnCr2 O4 is likely to have a normal spinel structure because · 2013
ABC26IN1034 · MnCr2 O4 is likely to have a normal spinel structure because · DEC 2013
ABC26IN1036 · The most appropriate structure for the complex [Pt2(NH3)2(NCS)2(PPh3)2] is · DEC 2013
ABC26IN1038 · NiBr2 reacts with (Et) (Ph2 ) P at -78 C in CS2 to give red compound ' A ', which upon standing at room temperature turns green to give… · JUNE 2014