12th CBSE Question Paper

One marks Questions

Q.1 What is the coordination number of metal ion in [Fe(C 2 O 4 ) 3 ]3-

Q.2 Give an example of linkage isomerism.

Q.3 How if the magnitude of CFSE affected by nature of legend and oxidation state of metal ion?

Q.4 Illustrate with example ionization isomerism in coordination compounds.

Two marks Questions

Q.5 Write the isomers, name of isomerism and IUPAC name of one of isomer of [Cr(NH 3 ) 4 Cl 2 ]+

Q.6 Write the chemical formula of following:

(i) Hexaammineplatinum (ii) chloride (iii) tetraamminedichloridocobalt (iv) ion

Q.7 Write the IUPAC name of following complexes:

(i) [Ni(H 2 O) 6 ](ClO 4 ) 2 (ii) [Co(NH 3 ) 5 NO 2 ]+2 (iii) [Pt(NH 3 ) 4 Cl 2 ]Cl 2 (iv) Na 3 [Cr(OH) 2 F 4 ]

Three marks Questions

Q.8 Using the valance bond theory explain the geometry and magnetic nature of [Co(NH3) 6 ]3+

Q.9 Write the IUPAC name and possible optical isomers of [CrCl 3 (en)(NH 3 ) 2 ]+

Q.10 Compare the magnetic behavior of [Fe(CN) 6 ]4- and [FeF 6 ]3-

Q.11 (i) On the basis of CFT write the electronic configuration of d4 ion if CFSE is less than pairing energy.

(ii) Write the structure and name of all stereoisomers of the following: