Chemistry Question Bank

Choose the correct statement

The correct order of magnetic moments (spin only) values in BM) among the following is (Atomic number: Mn = 25, Fe = 26, Co = 27)

Which one of the following complex ion has the highest magnetic moment?

Among the following complexes, which has a magnetic moment 5.9 BM ? Ni(CO)4, [Fe(H2O)6]2+, [Co(NH3)6]3+, [MnBr4]2–, [Zn(NH3)4]2+

The correct order of magnetic moments (spin only values in B.M.) is

Amongst[ Ni (CO)4], [Ni (CN)4]2– and [NiCl4]2

Amongst the following, the lowest degree of paramagnetism per mole of the compound at 298 K will be shown by

Spin only magnetic moment of the compound Hg[Co(SCN)4] is (a) (b) (c) (d)

Which of the following species contains equal number of -and -bonds? (AIPMT 2015)

Jahn-Teller effect is not observed in high spin complexes of (NEET 2016)

Which of the following has longest C-O bond length? (Free C-O bond length is CO is 1.128Å.) (NEET 2016)

An example of a sigma bonded organometallic compound is (NEET 2017)

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)

The geometry and magnetic behaviour of the complex [Ni(CO)4] are (NEET 2018)

The type of isomerism shown by the complex [CoCl2(en)2] 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

Iron carbonyl, Fe(CO)5 is (NEET 2018)

What is the correct electronic configuration of the central atom in K4[Fe(CN)6] based on crystal field theory? (NEET UG 2019)

Which of the following is the correct order of increasing field strength of ligands to form coordination compounds? (NEET 2020)

Ammonia gas does not evolve from the complex FeCl3.4NH3 but it gives white precipitate with aqueous solution of AgNO3. Coordination number of central metal ion in the above complex is six. Give IUPAC name of the complex

The octahedral complex of a metal ion M3+ with four monodentate ligands L1, L2, L3 and L4 absorb wavelengths in the region of red, green, yellow and blue, respectively. The increasing order of ligand strength of the f…

Among the following which are ambidentate ligands? (i) - NO (ii) - NO (iii) EDTA 4– (iv) C2O4 2– (v) SCN –

Among the ligands NH3, en, CN– and CO, the correct order of their increasing field strength, is

Which among the following will be named as dibromidobis-(ethylenediamine) chromium (III) bromide?

The IUPAC name for [(NH3)5 Cr– (OH) – Cr(NH3)5]5+ is a -hydroxo-bis (pentaammine dichromium) (5+) ion b -hydroxo-bis (decaamminedichromium) (5+) ion