Why is oxygen called as gas ? Give two reasons ?
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(i) Oxygen neither has a fixed shape nor a fixed volume.
(ii) Oxygen exerts pressure due to the collisions of the molecules on the walls of the containing vessel.
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Explanation:
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. ... Hence oxygen is called gas.
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