Short answerEasy1 mark
1(e)
State one relevant reason for each of the following:
Concentrated nitric acid appears yellow, when it is left for a while in a glass bottle.
Topic: Nitric acid: preparation and properties
Previous-year question practice database
Answer
Exam answer
HNO₃ slowly decomposes in light, producing NO₂ which dissolves in the acid and imparts a yellow colour.
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