ABC26IN1356 · A compound A having the composition FeC9H8O3 shows one signal at 2.5 ppm and another one around · DEC 2011self-practice
ABC26IN0501 · White phosphorus, P4, belongs to the · 2005-2021
ABC26IN1357 · The reactions of Ni(CO)4 with the ligand (L=PMe3 . or .P(OMe)3 ) L yields Ni(CO)3 L. The reaction is · JUNE 2012
ABC26IN0502 · The number of M-M bonds in Ir4(CO)12 are · 2005-2021
ABC26IN1358 · Among the following the strongest oxidizing agent is: · JUNE 2012
ABC26IN1359 · For the reaction, trans- [IrCl(CO) (PPh3 )2 ]+Cl2 trans - [IrCl3(CO) (PPh3 )2 ] the correct observation · JUNE 2012
ABC26IN0231 · The carbonyl resonance in 13C NMR spectrum of [(5-C5H5)]Rh(CO)]3 (103Rh, nuclear spin, I=1/2, 100 %) shows a triplet at -65 C owing to the… · 2012self-practice
ABC26IN0504 · For the compound the stereochemical notations are · 2005-2021self-practice
ABC26IN1360 · The carbonyl resonance in 13C NMR spectrum of [(5-C5H5)Rh(CO) ]3 (103Rh, nuclear spin, I = 1/2, 100\%) shows a triplet at -65 owing to the… · JUNE 2012
ABC26IN1362 · The final product of the reaction [Mn(CO)6]+ + MeLi is: · JUNE 2012
ABC26IN0509 · The number of 'framework electron pairs' present in the borane cluster [B12 H12 ]2- is: · 2005-2021
ABC26IN1365 · The substitution of 5-Cp group with nitric oxide is the easiest for · DEC 2012
ABC26IN0510 · The reaction between [PdCl4 ]2- and C2 H4 produces a new compound. Compare to free C2 H4, the C-C bond order of the product is: · 2005-2021
ABC26IN1367 · Complexes of general formula, fac- [Mo(CO)3(phosphite)3 ] have the C-O stretching bands given below. Phosphines: PF3(A) ; PCl3(B)… · DEC 2012
ABC26IN0513 · The product of the reaction between CH3 Mn(CO)5 and 13 CO is: · 2005-2021
ABC26IN0234 · Consider the catalyst in column-I and reaction in column-II Column-I Column-II A [(R)-BINAP] Ru-2 i. Hydroformylation. · DEC 2012
ABC26IN0514 · The number of terminal carbonyl groups present in Fe2(CO)9 is · 2005-2021
ABC26IN0515 · An intermediate formed during the hydroformylation of olefins using Co2(CO)8 as catalyst is · 2005-2021
ABC26IN0516 · Decarbonylation reaction of [cis- (CH3 CO ) Mn ( 13 CO )(CO)4 ] yields X, Y and Z, where X= [(CH3) Mn(CO)5 ]; Y= [cis-(CH3) Mn ( 13 CO )… · 2005-2021
ABC26IN0518 · An example of nido-borane from the following is · 2005-2021
ABC26IN0519 · The reaction of [Cp2 TaMe2 ] I (Cp=C5 H5- )with NaOMe yields. · 2005-2021
ABC26IN1374 · The oxidation state of molybdenum in [ (7 -tropylium ) Mo(CO)3 ]+is: · JUNE 2013
ABC26IN0238 · The orders of reactivity of ligands, NMe3 PMe3, and CO with complexes MeTiCl, and (CO)5Mo\,(thf) are · 2013
ABC26IN1376 · The orders of reactivity of ligands, NMe3 PMe3, and CO with complexes MeTiCl, and (CO)5 Mo (thf) are · JUNE 2013
ABC26IN0524 · When one CO group is replaced by PPh3 in [Cr(CO)6 ], which one of the following statement is TRUE? · 2005-2021
ABC26IN1380 · Which of the following in NOT suitable as catalyst for hydroformylation? · DEC 2013
ABC26IN0527 · The hapticity of cycloheptatriene, (C7 H8 ), in Mo (C7 H8 )(CO)3 is ____ · 2005-2021self-practice
ABC26IN0528 · The structure type and shape of the polyhedral (skeletal) framework of the carborane Me2 C2 B10 H10, respectively, are · 2005-2021
ABC26IN0241 · The correct statement regarding terminal/bridging CO groups in solid Co4(CO)12 and Ir4(CO)12 is · 2013
ABC26IN0530 · The reaction of equimolar quantities of Fe(CO)5 and OH-gives a complex species X which on further reaction with MnO2 give species Y. X and… · 2005-2021
ABC26IN0243 · Among the following, the correct statement is · 2013
ABC26IN0531 · In the following reaction, the stereochemistry of the major product is predicted by the · 2005-2021self-practice
ABC26IN1385 · Among the following, the correct statement is · DEC 2013
ABC26IN0532 · The product obained in the reaction of Mn2(CO)10 with Br2 is · 2005-2021
ABC26IN1386 · Substitution of L with other ligands will be easiest for the species · DEC 2013
ABC26IN1387 · Reaction of Ph2PCH2CH2PPh2 with [RhCl(CO)2]2 in a 2:1 molar ratio gives a crystalline solid A. The IR spectrum of complex A shows vco at… · DEC 2013
ABC26IN0534 · The CORRECT statement regarding the substitution of coordinated ligands in Ni(CO)4 and Co(NO)(CO)3 is: (Given: Co-N-O bond is nearly… · 2005-2021
ABC26IN1389 · The ligand(s) that is (are) fluxional in [ (5-C5 H5 ) (-C5 H5 ) Fe(CO)2 ] in the temperature range 221-298\,K, is (are) · JUNE 2014
ABC26IN0536 · In the following reaction sequence, the structure of B is (Given: atomic number of Mo is 42) · 2005-2021
ABC26IN0244 · Amongst the following which is not isolobal pairs · 2014
ABC26IN1395 · Amongst the following which is not isolobal pairs · JUNE 2014
ABC26IN1398 · The product of the reaction of propene, CO and H2 in the presence of Co2(CO)8 as a catalyst is · DEC 2014
ABC26IN0245 · The point group symmetries for trans-[Cr(en)2F2]+ and [TiCl6]3-, respectively, are · 2014
ABC26IN1399 · The point group symmetries for trans- [Cr(en)2F2 ]+ and [TiCl6 ]3-, respectively, are · DEC 2014self-practice
ABC26IN1404 · 1H NMR spectrum of free benzene shows a peak at -7.2 ppm. The expected chemical shift (in ppm) of C6H6 ligand in 1H NMR spectrum of [… · DEC 2014
ABC26IN0246 · The final product in the reaction of [Cp*ThH] with CO in an equimolar ratio is · 2014
ABC26IN1409 · The role of copper salt as co-catalyst in Wacker process is · JUNE 2015
ABC26IN0250 · The reaction [Co(CN)5 H2 O ]2-+X- [Co(CN)5 X ]2-+H2 O follows a/an · 2015