Short answerEasy1 mark
6(iii)
Anil is a laboratory assistant in a college. He prepared nitric acid but stored it in a transparent container exposed to sunlight. After a few days, brown fumes were observed in the container and the acid turned slightly yellowish in colour.
How can the yellowish tinge in the acid be removed?
Topic: Metallurgy, ores, extraction and alloys
Previous-year question practice database
Answer
Exam answer
Bubble air or CO₂ through the acid to remove dissolved NO₂.