Reducing agent:
- In a redox chemical reaction, the reducing agent loses one or more of its electrons to the electron receiving group.
- After losing electrons, the reducing agent becomes oxidized and, by giving electrons, also causes the opposite reactant to become reduced.
- When reacts with zinc we get zinc selenide with hydrogen gas.
- From the reaction we can see that Zinc is oxidized but is reduced, is the oxidizing agent and not the reducing agent.
Therefore, is not a reducing agent.