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प्रश्न
Why does pure nitric acid take on a yellowish brown colour when exposed to light?
उत्तर
Yellowish brown colour of nitric acid is due to the presence of nitrogen dioxide formed due to thermal decomposition of nitric acid.
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संबंधित प्रश्न
Name the products formed when dilute \[\ce{HNO3}\] is added to copper.
Name the oxide of nitrogen which turns brown on exposure to air. How is it prepared?
Name the Following:
Salt referred to as chile saltpeter.
Complete and balance the following equation :
SO2 + HNO3 → ______________
Complete and balance the following equation :
Pt + HNO3 + HCl → ___________
Give two chemical tests to distinguish between dilute nitric acid and hydrochloric acid.
State the conditions for the oxidation of ammonia to nitrogen monoxide [nitric oxide], in the manufacture of nitric acid by Ostwald's process. Write the balanced equcation for the reaction.
What do you see when concentrated nitric acid is added to copper?
What happens when
Common salt solution is added to silver nitrate solution and NH3 solution add to it.
A dilute acid B does not normally give hydrogen when reacted with metals but does give a gas when reacts with copper. Identify B. Write the equation with copper.
