19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
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)
The compound having tetrahedral geometry is
Among the following, the compound that is both paramagnetic and coloured is
In which of the following coordination entities the magnitude of o (CFSE in octahedral field) will be maximum? (At. no. Co = 27) [CBSE AIPMT2007]
Which of the following will give a pair of enantiomorphs? (en = NH2CH2CH2NH2) [CBSE AIPMT 2007]
The d-electron configuration of Cr 2+, Mn 2+, Fe 2+ and Co 2+ are d 4, d 5, d 6 and d 7 respectively. Which one of the following will exhibit minimum paramagnetic behaviour? [CBSE AIPMT 2007]
Which of the following complex ions, which is diamagnetic in nature? [CBSE AIPMT 2008]
Which of the following complexes exhibit the highest paramagnetic behaviour? (where, gly = glycine, en = ethylenediammine and bpy = bipyridyl moities) (At. no : Ti = 22, V = 23, Fe = 26, Co = 27) [CBSE AIPMT 2008]
How many electrons are present in 3d orbital of tetrahedral K2[NiCl4] complex? [Guj. CET 2008]
Which of the following complex ion is expected to absorb visible light? [CBSE AIPMT 2009]
Which of the following coordination entities should be expected to absorb light of lowest frequency?[AIIMS2009]
Assertion: CO and CN are referred as acid ligands. Reasaon: In CO and CN vacant type orbitals are present. [AIIMS 2009]
AgCl is dissolved in excess of each of NH3, KCN and Na2S2O3. The complex ions produced in each case are (AMU 2010)
The complex, [Pt(Py)(NH3)BrCl] will have how many geometrical isomers? [CBSE AIPMT 2011]
The complexes [Co(NH3)6][Cr(CN)6] and [Cr(NH3)6] [Co(CN)6] are the examples of which type if isomerism? [CBSE AIPMT 2011]
Which of the following facts about the complex [Cr(NH3)6]Cl3 is wrong? (AIPMT 2011)
The magnetic moment (spin only) of [NiCl4]2– is (AIPMT 2011)
The chloride ion is detected by the formation of a white precipitate of AgCl on addition of aqueous AgNO3 solution and by the dissolution of the precipitate on addition of excess ammonia solution. AgCl dissolves in aq…
Which one of the following is an outer orbital complex and exhibits paramagnetic behaviour? [CBSE AIPMT 2012]
The -bonded organometallic compound which has ethene as one of its component is [J&K CET]