+91-8076753736[email protected]
logo
logo
-->

Coordination Compounds

Question
CBSEENCH12011219
Wired Faculty App

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 

  • 9

  • 6

  • 7

  • 8

Solution

B.

6

Given complex compound is [M(en)2(C2O4)]Cl
Let oxidation number of M is x
therefore,   x- 2 - 2 = -1
 x = +3
Now, as coordination number is defined as the total number of binding sites attached to the metal.Hence, in the given complex coordination number is 6.

Some More Questions From Coordination Compounds Chapter

Explain on the basis of valence bond theory that [Ni(CN)4]2–  ion with square planar is diamagnetic and the [NiCl4]2– ion with tetrahedral geometry is paramagnetic.

Predict the number of unpaired electrons in the square planar [Pt(CN)4,]2– ion.

The hexaquo manganese(II) ion contains five unpaired electrons, while the hexacynoion contains only one unpaired electron. Explain using crystal field theory.

Calculate the overall complex dissociation equilibrium constant for the Cu(NH3)42+ion, given β4 for this complex is 2.1 x 1013.

Identify the ligands from the following coordination compounds:
(a)    [Co(en)2Cl(NO2)2]
(b)    K[Co(CN)(CO2)(NO)]
(c)    K3[Al(OH)6]
(d)    [Co(H2O)2(NH3)4](OH)3

Write IUPAC name of the following complexes:
(a)    [Fe(H2O)6]SO4
(b)    [Cu(en)2(NO3)2

Give IUPAC name of the following complexes:
(i) Na2[Fe(CN)5(NO)],       (ii) K2[Zn(CN)4]

Mock Test Series

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation