Answer :

Concentrated nitric acid is an oxidising agent and attacks most metals except noble metals such as gold and platinum. The products of oxidation depend upon the concentration of the acid, temperature and the nature of the material undergoing oxidation.


Zn + 4HNO3(conc.) Zn(NO3)2 + 2H2O + 2NO2


Zinc nitrate, water, and nitrogen dioxide (brown gas) are the by-product of this reaction.


This brown gas (nitrogen dioxide) dimerise on cooling to form nitrogen tetraoxide which is stable than the later one.


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses
RELATED QUESTIONS :

On heating compouChemistry - Exemplar

Explain why NCl<sChemistry - Exemplar