Question

Identify the oxidizing agent and the reducing agent for each reaction: Drag the appropriate labels to their respective targets.

Answer 1

Reducing agent (RA) is the one that get oxidised ie, the oxidation number increases.

Oxidising agent (OA) is the one that get reduced ie, the oxidation number decreases.

$Al+3Ag^+\rightarrow Al^{3+}+3Ag$

The oxidation state of Al goes from 0 to +3, so itsthe RA.

Ag oxidation state decreases from +1 to 0, so its the OA.

$Ba+Cl_2\rightarrow BaCl_2$

Oxidation state of Ba increases from 0 to +2, so its the RA.

Oxidation state of Cl decreases from 0 to -1, so its the OA.

$Mg+Br_2\rightarrow MgBr_2$

Oxidation state of Mg increases from 0 to +2, so its the RA.

Oxidation state of Br decreases from 0 to -1, so its the OA.