Question

in the manufacture of nitric acid what is the ratio of dry air : dry ammonia ? why is nitric acid is colleced in a tower stacked with quartz

Answer 1

Explanation:

Pure and dry ammonia gas mixed with air in the ratio of 1 : 8 by volume is first compressed and then passed over heated platinum gauze at 800°C.

(ii) Quartz is acid-resistant and when packed in layers helps in dissolving nitrogen dioxide uniformly in water.