Question

6) State two important uses of following non -metal

(b) Oxygen

Answer 1

Part I - Oxygen:

• Oxygen is a chemical element and has a symbol $\mathrm{O}$.
• The atomic number of oxygen is 8 and is present in group 16.

Part II - Uses of oxygen:

• Oxygen is essential for the combustion of fuels as it forms carbon dioxide and water as the products.
• Oxygen is essential for the survival of human beings as it helps in respiration.