Question

The co-ordinate number and the oxidation state of the element E in the complex [E(en)₂(C₂O₄)]NO₂ are respectively?

Options

• 6 and 3

• 6 and 2

• 4 and 2

• 4 and 3

Answer 1

6 and 3

Explanation:

The CN of E = 6 oxidation state of E(x)

x + 2(0) + –2 = +1

x = + 1 + 2 = + 3