Oxygen gas is produced when hydrogen peroxide reacts with manganese dioxide. How would you identify the oxygen gas? Name the method/test you
would use and explain the details of your observations to confirm the identity of
the gas.

method used is decomposition

Explanation:

Hydrogen Peroxide (H2O2) will decompose rapidly in the presence of Manganese Dioxide, acting as the catalyst, to produce Oxygen gas and water.

When the Hydrogen Peroxide and Manganese Dioxide are mixed, Oxygen gas bubbles should be seen coming from the mixture. One can collect this Oxygen gas produced over water (through water-displacement) and store it inside a bottle for later use.

where are the choice options?