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- Can someone explain - p- d- and f-block elements - BITSAT-2
- #p- d- and f-block elements
- #Engineering
- #Birla Institute of Technology & Science Admission Test
- #Chemistry
Coordination number and oxidation number of Cr in
are respectively:
- Option 1)
4 and +2
- Option 2)
6 and +3
- Option 3)
3 and +3
- Option 4)
3 and 0
Answers (1)
As we learnt in
Chelate ligands and Chelate complex -
When a di or polydentate ligand uses its two or more donor atom to bind a single metal atom to form a cycle ring, it is known as chelate ligand.
Complex formed by chelate ligands are called chelate compound.
- wherein
Chelate complex are more stable than ligands containing unidentate ligand.
is a chelate ligand and forms two coordinate bonds. Coordination number is 6.
Also on balancing the charge, we find central atom is Cr3+
Therefore, charge is +3
Option 1)
4 and +2
This answer is incorrect
Option 2)
6 and +3
This answer is correct
Option 3)
3 and +3
This answer is incorrect
Option 4)
3 and 0
This answer is incorrect
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