Question

Write down the physical properties of nitrogen gas. [2 marks]

Answer 1

The physical properties of nitrogen gas are as follows:

• It is a colourless, tasteless, and odourless gas. [0.5 marks]
• It is slighly lighter than air. [0.5 marks]
• It is slightly soluble in water. [0.5 marks]
• Its boiling point is about -195 ${}^{\circ }$C. [0.5 marks]