The ionization isomer of [Cr(H₂O)₄Cl(NO₂)]Cl is 

The hybridisation of Fe in K₄[Fe(CN)₆] is 

Which of the following is an outer orbital complex? 

Which of the following is not considered as an organometallic compound? 

2 : 4 Dinitrophenyl hydrazine is an example for

How is stability of coordination compounds determined in aqueous solution?

[Fe(H₂O)₆]³⁺ is strongly paramagnetic where as [Fe(CN)₆]^3- is weakely paramagnetic. Explain.

What is spectrochemical series? Explain the difference between a weak field ligand and a strong field ligand.

Write the name, state of hybridization, shape and magnetic behaviour of the following complexes :
[CoCl₄]^2-,[Ni(CN)₄]^2-,[Cr(H₂O)₂(C₂O₄)₂]^-
(At. nos. : Co = 27, Ni = 28, Cr = 24)

Compare the following complexes with respect to structural shapes of units, magnetic behaviour and hybrid orbitals involved in units:[Co(NH₃)₆]³⁺,
[Cr(NH₃)₆]³⁺,[Ni(CO)₄]
(At. Nos:Co = 27, Cr = 24, Ni = 28)

CoSO₄Cl.5 NH₃ exists in two isomeric forms 'A' and 'B' gives white precipitate with BaCl₂ but does not react with AgNO₃.  Answer the following questions.
(i) Identify 'A' and 'B' and write their structure formulas.    
(ii) Name the type of isomerism involved    
(iii) Give the IUPAC name of 'A' and 'B'.

What is the relationship between observed colour of the complex and the wavelength of light absorbed by the complex ?

Co-ordination compounds have an important role in the field of medicines. Out of these, the compound cis-platin is quite effective against cancer. It inhibits the growth of tumors leading to cancer.
(i) What is the chemical formula and name of the complex?
(ii) How does it behave as an anti cancer agent?
(iii) Why is trans-isomer not effective?
(iv) What is the value associated with the use of cis platin?