chm 102a home assignment 1
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Department of chemistry
IIT Kanpur
CHM‐102A, General Chemistry
Home assignment‐I
1. (a) Predict the type(s) of isomerism exhibited by the following complexes
(i) [Cr(H2O)5Cl]Cl2∙2H2O, (ii) [Co(ox)3]3‐, (iii) [Cr(NH3)6][Co(CN)6]
(iv) [PtCl(dien)]+
(b) Which one of the above complexes are chiral.
2. Show the crystal field energy level diagram with proper labelling for the following metal
complexes. Also calculate the spin only magnetic moment values for these complexes
(i) [PtCl4]2‐ (ii)[V(NH3)6]
2+, (iii) [FeCl4]‐, (iv) [Fe(H2O)6]
3+
3. Calculate the CFSE for the given complexes and which among the complexes will have strong
Jahn Teller Distortion?
(i) [Co(H2O)6]2+, (ii) [V(H2O)6]
2+, (iii) [Fe(H2O)6]3+, (iv). [Cr(H2O)6]
3+
4. Which one of the complex among the following pair of complexes would Δo be larger and why?
(i) [Fe(CN)6]4‐ or [Ru(CN)6]
4‐
(ii) [Co(H2O)6]2+ or [Co(NH3)6]
2+
(iii) [Cr(NH3)6]3+ or [Cr(NH3)6]
2+
(iv) [Fe(CN)6]4‐ or [Fe(H2O)6]
2+
5. The lattice enthalpy of VO (3913 KJ/mol) is higher than MnO (3810 KJ/mol), why ?
6. (a) Among the two oxides which shows a normal spinel structure and why?
(i) Fe3O4, (ii) MnFe2O4