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Assignment for Class 12 Chemistry Unit 09 Coordination Compounds
Class 12 Chemistry students should refer to the following printable assignment in Pdf for Unit 09 Coordination Compounds in Class 12. This test paper with questions and answers for Class 12 Chemistry will be very useful for exams and help you to score good marks
Unit 09 Coordination Compounds Class 12 Chemistry Assignment
(a) Ethane-1,2-diamine
(b) Oxalate ion
(c)Ambidentate ligands:
Ligands that can attach themselves to the central metal atom through two different atoms arecalled ambidentate ligands.
7.Write the name of each of the following complex compound
(a) [Co(NH3)4(H2O)2]Cl3
(b) [Pt(NH3)4][NiCl4]
8 Write the IUPAC name of [CrCl2(en)(NH3)2]+
Ans. Diamminedichloridoethane-1,2-diamminechromium(III)ion
9 Why only transition metals are known to form π complexes?
Ans. Transition metals have empty d-orbitals into which the electron-pairs can be donated by ligands containing π electrons, i.e, electrons in their π molecular orbital.
10. CO is a stronger ligand than NH3. Why?
Ans. Back bonding.
11. What is crystal field splitting energy?
Energy difference between eg and t2g level.
12. Differentiate between:
a) Didentate and Polydentate ligand
Didentate ligand : Two binding sites
Polydentate ligand: more than two binding sites
b) Chelate ligand and ambidentate ligand
Chelate ligand : Forms cyclic structure.
ambidentate ligand : Bind through either of the atoms.
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CBSE Class 12 Chemistry Unit 09 Coordination Compounds Assignment
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