Here's why:
* Nitrogen is an inert gas: Nitrogen is very unreactive due to its strong triple bond between the nitrogen atoms. It does not readily participate in chemical reactions under normal conditions.
* Lime water is a base: Lime water is a basic solution.
* No reaction occurs: Nitrogen, being inert, doesn't react with the hydroxide ions (OH-) in the lime water solution.
Important Note: While nitrogen itself doesn't react with lime water, other nitrogen-containing compounds might. For example, ammonia (NH₃) reacts with lime water to form calcium ammonium hydroxide, a cloudy white precipitate.
