Which of the following is/are the uses of oxygen?
Combustion
Bleaching
As an oxidant in rocket fuels
Artificial respiration
The process of burning of a substance in oxygen is called combustion. Hence, oxygen supports combustion. Liquefied oxygen is used as an oxidant in rocket fuel. Oxygen is used for artificial respiration in hospitals, for space missions, for sea diving, etc. Nascent oxygen [O] is a really good oxidizing agent, thus it is used for bleaching.