30 questions from this paper that are in the bank. Each opens with its answer and explanation.
ABC26IN0040 · The biological functions of cytochrome P450 and myoglobin are, respectively · Bioinorganic Chemistry – General
ABC26IN0041 · The resonance Raman stretching frequency (nu o-o. in cm-1) of O2, is 1580. The nu o-o for O2 in bound oxy-hemoglobin is close to · Oxygen Carriers Hemoglobin
ABC26IN0042 · Match the metalloprotein in Column-A with its biological function and metal centre in Column-B. The correct match is · Oxygen Carriers Hemoglobin
ABC26IN0108 · The electric-dipole allowed transition among the following is [CSIR-JUNE 2015] · Coordination Chemistry – General
ABC26IN0109 · The lowest energy-state of an atom with electronic configuration ns1np1 has the term symbol [CSIR-JUNE 2015] · Electron Transfer Redox
ABC26IN0110 · Match the complexes given in column I with the electronic transitions (mainly responsible for their colours) listed in column II The… · Electron Transfer Redox
ABC26IN0111 · The complex [Fe(phen)2(NCS)2] (phen 1,10-phenanthroline) shows spin cross-over behaviour CFSE and at mu eff 250 and 150 K, respectively are · Coordination Chemistry – General
ABC26IN0112 · The term symbol for the first excited state of Be with the electronic configuration 1s2 2s1 3s1 is. [CSIR-DEC 2015] · Electron Transfer Redox
ABC26IN0113 · The formation constant for the complexation of M+ (M = Li, Na, K and Cs) with cryptand, C222 follows the order [CSIR-DEC 2015] · Coordination Chemistry – General
ABC26IN0114 · [MnO4]^- is deep purple in colour whereas [ReO4]^- is colourless. This is due to greater energy required for [CSIR-DEC 2015] · Charge Transfer Spectra
ABC26IN0115 · The symmetry-allowed atomic transition among the following is [CSIR-DEC 2015] · Coordination Chemistry – General
ABC26IN0116 · [NiIIL6]n+ or n- shows absorption bands at 8500, 15400, and 26000 cm-1 whereas [NiIIL'6]n+ or n- at 10750, 17500 and 28200 cm-1. L and L'… · Coordination Chemistry – General
ABC26IN0172 · Consider the following statements for (NH4)2[Ce(NO3)6] (Z) (A) Coordination number of Ce is 12 (B) Z is paramagnetic (C) Z is an oxidising… · Magnetic Properties 4f
ABC26IN0197 · The order of increasing Bronsted acidity for boron hydrides is · Hydrides
ABC26IN0198 · The ring size and the number of linked tetrahedral present in [Si6 O18]12- are, respectively · Ring Cage Cluster
ABC26IN0199 · Consider the following reaction : N3P3Cl6 + 6HNMe2 → [A]N3P3Cl3(NMe2)3 + 3 Me2NH · HCl The number of possible isomers for [A] is · Main Group Elements – General
ABC26IN0222 · Identify radioactive capture from the following nuclear reactions: · Nuclear Reactions Q Value
ABC26IN0248 · The refluxing of RhCl3 · 3H2O with an excess of PPh3, in ethanol gives a complex A. Complex A and the valence electron count on rhodium… · 18 Electron Rule
ABC26IN0249 · The beta -hydrogen elimination will be facile in · Oxidative Addition Reductive Elimination
ABC26IN0250 · The reaction [Co(CN)5 H2 O]2-+X- → [Co(CN)5 X]2-+H2 O follows a/an · Organometallic Compounds – General
ABC26IN0251 · According to Wade's theory the anion [B12H12]2- adopts · Cluster Compounds Wade Rules
ABC26IN0252 · The reaction of SbCl3, with 3 equivalents of EtMgBr yields compound X. Two equivalents of SbI3 react with one equivalent of X to give Y. In… · Cluster Compounds Wade Rules
ABC26IN0253 · Match column A (coupling reactions) with column B (reagents) The correct match is: · Organometallic Compounds – General
ABC26IN0254 · Amongst the following (A) [Mn(eta 5-Cp)(CO)3] (B) [Os(eta 5-Cp)2] (C) [Ru(eta 5-Cp)2] and (D) [Fe(eta 5-Cp)2] the compounds with most… · Cluster Compounds Wade Rules
ABC26IN0255 · [(eta 3-C3H5)Mn(CO)4] shows fluxional behavior. The 'H NMR spectrum of this compound when it is in the non-fluxional state shows- · Organometallic Compounds – General
ABC26IN0256 · Using Wade's rules predict the structure type of [C2B5H7] · Cluster Compounds Wade Rules
ABC26IN0258 · The approximate positions of nu co bands (cm-1) in the solid-state infrared spectrum and the Fe-Fe bond order in [Fe(eta 5-C5H5)(mu… · Organometallic Compounds – General
ABC26PH0161 · The simplest ground-state VB wave function of a diatomic molecule like HCl is written as psi = psi H(1s,1) psi Cl(3pz,2) + B where B stands… · Quantum Chemistry – General
ABC26PH0162 · Two different non-zero operators A and B (A ≠ B) satisfy the relation (A+B)(A-B) = A2 - B2 · Postulates Operators
ABC26PH0163 · The degeneracy of an excited state of a particle in 3-dimensional cubic box with energy 3 times its ground state energy is · Quantum Chemistry – General