Question

14.Why is oxygen called a gas? Give two reasons

Answer 1

Answer:

Oxygen is a non-metal which is very reactive. It readily forms oxides by reacting with elements.  

Here are a few reasons:

• Oxygen remains in gaseous state at normal temperature and pressure.

• The particles of oxygen move randomly in all directions due to less inter particular force and high kinetic energy.

• They do not have a fixed shape or volume.

• They have low densities and can be compressed easily. Hence oxygen is called gas.

Answer 2

Answer:

Oxygen is a basic sub-atomic structure, where singular oxygenmolecules are attached to each other by solid covalent bonds. ... In this way, at room temperature, oxygen is a gas.