Organometallic Compounds

ABC26IN1497 · Among the following complexes, the one showing the highest rate of substitution of a CO ligand on heating with one equivalent of PPh3 in… · DEC 2019

ABC26IN1502 · The number of peaks with relative intensities observed in the 1 H NMR spectra of [(Cp)2 Fe(CO)2] at +30 °C and - 80 °C in diethyl ether… · DEC 2019

ABC26IN0749 · Metal-carbon multiple bonds in metal carbonyl are preferably identified from the stretching frequency of · 2005-2022

ABC26IN0750 · B2 H6 and B4 H10, respectively, are examples of · 2005-2022

ABC26IN0752 · The Correct order of CO vibrational stretching frequency in the following complexes is (I) (PF3)3 Mo(CO)3 (II) (PCl3)3 Mo(CO)3 (III)… · 2005-2022

ABC26IN0755 · For the following reactions, the metal complexes X and Y are (i) Ni(s) [1 atm / 25° C]CO(g) X (ii) FeCl2 2 NaC5 H5 Y · 2005-2022

ABC26IN0757 · The value of 'x' in [Cu(CO)x]+such that it obeys the 18 electron rule is · 2005-2022

ABC26IN0759 · The homogeneous catalyst used in water-gas shift reaction is · 2005-2022

ABC26IN0760 · Among the following metal carbonyl species, the one with the highest metal-carbon back bonding is · 2005-2022

ABC26IN0762 · The correct option having one complex from each of the following pairs which is more reactive towards the oxidative addition reaction by… · 2005-2022

ABC26IN0763 · The value of n for the complex [Fe(CO)4 (SiMe3)]n satisfying the 18-electron rule is · 2005-2022 self-practice

ABC26IN0764 · Number of vertices in an icosahedral closo-borane is ____. · 2005-2022

ABC26IN0767 · The complex which does NOT obey 18 - electron rule is (atomic number for Mn=25, Fe=26, Co=27, Ru=44) · 2005-2022

ABC26IN0770 · The complex that does NOT obey the 18-electron rule is (Given: Atomic numbers of Ti, Mn, Ta and Ir are 22, 25, 73 and 77, respectively) · 2005-2022

ABC26IN0773 · The structure types of B10 H10 2- and B10 H14, respectively, are · 2005-2022

ABC26IN0774 · The order of increasing CO stretching frequencies in [Co(CO)4]-, [Cu(CO)4]+, [Fe(CO)4]2- and [Ni(CO)4] is · 2005-2022

ABC26IN0775 · The number of CO stretching bands in the infrared spectrum of Fe(CO)5 is · 2005-2022

ABC26IN0225 · The oxidative addition and reductive elimination steps are favoured by · JUNE 2011

ABC26IN1355 · The greater stability of ((CH3)3 C-CH2 -)4 Ti(A) compared to that of ((CH3)2 CH-CH2 -)4 Ti(B) is due to · DEC 2011

ABC26IN1371 · Which one of the following will NOT undergo oxidative addition by methyl iodide? · DEC 2012

ABC26IN0235 · In hydrofomylation reaction using [Rh(PPh3)2(CO)(H)] as the catalyst, addition of excess PPh3, would · DEC 2012

ABC26IN1372 · In hydrofomylation reaction using [Rh (PPh3)2(CO)(H)] as the catalyst, addition of excess PPh3, would · DEC 2012

ABC26IN1375 · The reaction, [(CO)5 Mn(Me)]+CO → [(CO)5 Mn{C(O) Me}] is an example for · JUNE 2013

ABC26IN1390 · The typical electronic configurations of the transition metal centre for oxidative addition · JUNE 2014

ABC26IN1401 · Reductive elimination step in hydrogenation of alkenes by Wilkinson catalyst results in (neglecting solvent in coordination sphere of Rh) · DEC 2014

ABC26IN1403 · The compound that undergoes oxidative addition reaction in presence of H2, is · DEC 2014

ABC26IN1444 · Heating a sample of [ (eta 5-C5 H5) Mo(CO)3]2 results in the formation of [ (eta 5-C5 H5) Mo(CO)2] with elimination of 2 equivalents of CO… · DEC 2015

ABC26IN1459 · Addition of NaBH4 to [ (eta 5-Cp) Fe (eta 6-C6 H6)]+will give · JUNE 2017

ABC26IN0283 · The rate-determining step in the catalytic synthesis of acetic acid by Monsanto process is · 2019

ABC26IN1493 · The rate-determining step in the catalytic synthesis of acetic acid by Monsanto process is · DEC 2019