Question

In the coordination compound [Cr(NH3)2(en)Cl2]Br2, the coordination number (C.N.) and oxidation number (O.N.) of the metal atom, respectively, are

Answer 1

The coordination number (C.N.) is 6 and oxidation number (O.N.) is +4 of the metal atom.

C.N. = 6; O.N. = +4

What is Co-ordination number ?

• The coordination number, also known as ligancy, of a central atom in a molecule or crystal in chemistry, crystallography, and materials science refers to the quantity of atoms, molecules, or ions bound to it.
• A ligand is the ion, molecule, or atom that surrounds the center ion, molecule, or atom.
• The number of atoms, ions, or molecules that a central atom or ion in a complex, coordination compound, or crystal holds as its closest neighbors.

What is Oxidation number ?

• The total number of electrons that an atom acquires or loses to establish a chemical connection with another atom is known as the oxidation number, also known as the oxidation state.
• Each atom involved in an oxidation-reduction reaction has an oxidation number that represents how many electrons it may take, give, or share.

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