Identify the correct statement(s):
(i) During an oxidative addition reaction, the oxidation state of the metal increases for two and the coordination number increases for two.
(ii) A characteristic of reductive elimination is a decrease in both oxidation state and coordination number by 2.
(iii) Sigma bond metathesis takes place as side-reaction during oxidative addition.

Question

Quizplus · Accepted Answer

(i) In an oxidative addition reaction, the oxidation state of the metal indeed increases by two units, and the coordination number also increases by two, as the metal forms bonds with two additional ligands. (ii) In a reductive elimination, the oxidation state of the metal decreases by two units, and the coordination number decreases by two as two ligands are removed from the metal center. (iii) Sigma bond metathesis is not necessarily a side-reaction during oxidative addition; it is a distinct reaction mechanism where a metal-ligand sigma bond and a substrate sigma bond exchange partners without a change in oxidation state or coordination number of the metal.

Identify the Correct Statement(s)