19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
The correct order of magnetic moments (spin only values in B.M.) is
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+
Choose the correct statement
Among TiF6 2-, CoF6 3-, Cu2Cl2 and NiCl4 2- (atomic numbers of Ti = 22, Co = 27, Cu = 29, Ni = 28), the colourless species are
The compound having tetrahedral geometry is
The crystal field splitting energy for octahedral ( ) and tetrahedral ( t ) complexes is related as (a) t (b) t (c) t (d) t
The magnitude of crystal field stabilization energy in tetrahedral complexes (CFSE of t ) is considerably less than that in the octahedral field because
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 geometry of Ni(CO)4 and Ni(PPh3)2Cl2 are [Manipal 2006]
[Cr(H2O)6]Cl3 (at. no. of Cr = 24) has a magnetic moment of 3.83 BM, the correct distribution of 3d- electrons in the chromium of the complex is [CBSE AIPMT 2006] (a) xz x -y , x 3d 3d ,3d (b) xy x -y , 3d ,3d 3d , yz…
The pair in which both species have same magnetic moment (spin only value) is [AIIMS 2006]
The number of possible isomers of an octahedral complex [Co(C2O4)2 (NH3)2]– is [AIIMS2006]
Among the following, the species having square planar geometry for central atom are [AIIMS2006] (i) XeF4 (ii) SF4 (iii) [NiCl4] 2– (iv) [PtCl4] 2–
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]
Among the following, the compound that is both paramagnetic and coloured is
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]
The pair having the same magnetic moment is: [At, No. : Cr = 24, Mn = 25, Fe = 26, Co = 27]
Among [NiCO4], [Ni(CN)4]2–, [NiCl4]2– species, the hybridisation states of the Ni atom are, respectively (At. no. of Ni = 28)
The geometry of Ni (CO)4 and and Ni (P Ph3)2 Cl2 are
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 is wrongly matched?
Which of the following complex ions, which is diamagnetic in nature? [CBSE AIPMT 2008]
Which of the following is a double salt?
When potash alum is dissolved in water, the total number of ions produced is