Which among the following is not an oxidizing agent?KClO3O2CH4K2Cr2O7

Among the given options, CH4 (Methane) is not an oxidizing agent.

Here's why:

1. KClO3 (Potassium chlorate): This is an oxidizing agent. In a reaction, it tends to take electrons from other substances, hence it is an oxidizer.

2. O2 (Oxygen): This is also an oxidizing agent. It is well known for accepting electrons from other substances in reactions, especially in combustion and respiration processes.

3. CH4 (Methane): This is not an oxidizing agent. Instead, it is a reducing agent. In a reaction, it donates electrons to other substances.

4. K2Cr2O7 (Potassium dichromate): This is a strong oxidizing agent. It is often used in labs because it can take electrons from many other substances.

So, CH4 is the one among the given options that is not an oxidizing agent.