Step-by-step explanation:
Plasma is defined as the state of matter that is a hot ionized gas and it consists of positively charged ions and negatively charged electron.
For example, neon is a plasma as it is a gas that contains charged particles.
So, when a gas is further heated then a stage reaches where it becomes ionized and hence it then changes into plasma state.
Thus, we can conclude that heating gas to create plasma can yield positively charged ions and negative charged free electrons.