19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
A coordination compound of cobalt has the molecular formula containing five ammonia molecules, one nitro group and two chlorine atoms for one cobalt atom. One mole of this compound produces three moles of ions in an a…
The number of ions formed from a molecule of potassium ferrocyanide in aqueous solution is
Cr3+ form four complexes with four different ligands which are [Cr(Cl)6]3–, [Cr(H2O)6]3+, [Cr(NH3)6]3+ and [Cr(CN)6]3–. The order of CFSE (0) in these complexes is in the order :
The magnitude of crystal field stabilization energy in tetrahedral complexes (CFSE of t ) is considerably less than that in the octahedral field because
The crystal field splitting energy for octahedral ( ) and tetrahedral ( t ) complexes is related as (a) t (b) t (c) t (d) t
Assign the hybridization, shape and magnetic moment of K3[Cu(CN)4]:
[Cr(H2O)6]Cl3 (atomic number of Cr = 24) has a magnetic moment of 3.83 B.M. The correct distribution of 3d electrons in the chromium present in the complex is:
Among the following, the compound that is both paramagnetic and coloured is
The compound having tetrahedral geometry is
Which of the following is the correct order of increasing field strength of ligands to form coordination compounds? (NEET 2020)
What is the correct electronic configuration of the central atom in K4[Fe(CN)6] based on crystal field theory? (NEET UG 2019)
Iron carbonyl, Fe(CO)5 is (NEET 2018)
Which one of the following ions exhibits d-d transition and paramagnetism as well? (NEET 2018) (a) 2- Cr O (b) - MnO (c) 2- CrO (d) 2- MnO
The type of isomerism shown by the complex [CoCl2(en)2] is (NEET 2018)
The geometry and magnetic behaviour of the complex [Ni(CO)4] are (NEET 2018)
The correct order of the stoichiometries of AgCl formed when AgNO3 in excess is treated with the complexes: CoCl36NH3, CoCl35NH3, CoCl34NH3 respectively is (NEET 2017)
An example of a sigma bonded organometallic compound is (NEET 2017)
Which of the following has longest C-O bond length? (Free C-O bond length is CO is 1.128Å.) (NEET 2016)
Jahn-Teller effect is not observed in high spin complexes of (NEET 2016)
Which of the following species contains equal number of -and -bonds? (AIPMT 2015)
Cobalt (III) chloride forms several octahedral complexes with ammonia. Which of the following will not give a test of chloride ions with silver nitrate at 25ºC? (AIPMT 2015)
The name of complex ion, [Fe(CN)6] 3– is (NEET 2015)
Number of possible isomers for the complex [Co(en)2Cl2] Cl will be (en = ethylenediamine) (AIPMT 2015)
The sum of coordination number and oxidation number of the metal M in the complex [M(en)2(C2O4)]Cl (where en is ethylenediamine) is (AIPMT 2015)
Among the following complexes the one which shows zero crystal field stabilization energy (CFSE) is (AIPMT 2014)