Get premium membership and access questions with answers, video lessons as well as revision papers.

Explain the reaction of ammonia with air in the presence of platinum wire.

      

Explain the reaction of ammonia with air in the presence of platinum wire.

  

Answers


Kavungya
Procedure:
- Concentrated ammonia solution is put in a conical flask.
- The platinum (or even copper) wire is heated until white-hot.
- Oxygen gas or air is then passed through the ammonia solution.
- The red-hot platinum (copper) wire is then put into the flask containing the concentrated ammonia.

Observations:
- The hot platinum wire glows.
- Red-brown fumes are evolved.

Explanations:
- The hot platinum coil glows when it comes into contact with the ammonia fumes, which come from the concentrated ammonia solution.
- Reaction between ammonia and oxygen takes place on the surface of the platinum wire that acts a s a catalyst.
- A lot of heat is produced in the reaction that enables the platinum coil to continue glowing.
- Ammonia is oxidized to nitrogen (IV) oxide.
Kavungya answered the question on April 30, 2019 at 10:15


Next: Describe the Qualitative analysis for cations using sodium hydroxide solution.
Previous: Explain Ammonia solution as an alkali.

View More Chemistry Questions and Answers | Return to Questions Index


Learn High School English on YouTube

Related Questions